EP0155428A1 - Zusammensetzung für Farbfilmentwicklung - Google Patents
Zusammensetzung für Farbfilmentwicklung Download PDFInfo
- Publication number
- EP0155428A1 EP0155428A1 EP84420161A EP84420161A EP0155428A1 EP 0155428 A1 EP0155428 A1 EP 0155428A1 EP 84420161 A EP84420161 A EP 84420161A EP 84420161 A EP84420161 A EP 84420161A EP 0155428 A1 EP0155428 A1 EP 0155428A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- developer
- grams
- development
- amino
- composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 27
- IBNCJAHITPFKNI-UHFFFAOYSA-N 2-(4-amino-3-methylanilino)ethanol;sulfuric acid Chemical compound OS(O)(=O)=O.CC1=CC(NCCO)=CC=C1N IBNCJAHITPFKNI-UHFFFAOYSA-N 0.000 claims abstract description 4
- VVJXMKISHKLVFK-UHFFFAOYSA-N dihydrogen phosphate;[4-[ethyl-[2-(methanesulfonamido)ethyl]amino]-2-methylphenyl]azanium Chemical compound OP(O)(O)=O.CS(=O)(=O)NCCN(CC)C1=CC=C(N)C(C)=C1 VVJXMKISHKLVFK-UHFFFAOYSA-N 0.000 claims abstract 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 5
- 239000010452 phosphate Substances 0.000 claims description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 235000010265 sodium sulphite Nutrition 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims 2
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 claims 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims 1
- VRXOQUOGDYKXFA-UHFFFAOYSA-N hydroxylamine;sulfuric acid Chemical compound ON.ON.OS(O)(=O)=O VRXOQUOGDYKXFA-UHFFFAOYSA-N 0.000 claims 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 claims 1
- 239000003755 preservative agent Substances 0.000 abstract description 3
- 230000002335 preservative effect Effects 0.000 abstract description 3
- 239000000243 solution Substances 0.000 abstract description 3
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 description 9
- -1 silver halide Chemical class 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000003086 colorant Substances 0.000 description 4
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 2
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- PJWDOKOIVGPKDM-UHFFFAOYSA-N O.S(=O)(=O)(O)O.NC1=CC(=CC=C1)C.S(=O)(=O)(O)O.S(=O)(=O)(O)O.NC1=CC(=CC=C1)C.O Chemical compound O.S(=O)(=O)(O)O.NC1=CC(=CC=C1)C.S(=O)(=O)(O)O.S(=O)(=O)(O)O.NC1=CC(=CC=C1)C.O PJWDOKOIVGPKDM-UHFFFAOYSA-N 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- XKZQKPRCPNGNFR-UHFFFAOYSA-N 2-(3-hydroxyphenyl)phenol Chemical compound OC1=CC=CC(C=2C(=CC=CC=2)O)=C1 XKZQKPRCPNGNFR-UHFFFAOYSA-N 0.000 description 1
- CDAWCLOXVUBKRW-UHFFFAOYSA-N 2-aminophenol Chemical compound NC1=CC=CC=C1O CDAWCLOXVUBKRW-UHFFFAOYSA-N 0.000 description 1
- 229940044174 4-phenylenediamine Drugs 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 108010010803 Gelatin Proteins 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000003416 augmentation Effects 0.000 description 1
- 230000002089 crippling effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 150000004985 diamines Chemical class 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 239000008273 gelatin Substances 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 235000011852 gelatine desserts Nutrition 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 150000004682 monohydrates Chemical class 0.000 description 1
- AJDUTMFFZHIJEM-UHFFFAOYSA-N n-(9,10-dioxoanthracen-1-yl)-4-[4-[[4-[4-[(9,10-dioxoanthracen-1-yl)carbamoyl]phenyl]phenyl]diazenyl]phenyl]benzamide Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2NC(=O)C(C=C1)=CC=C1C(C=C1)=CC=C1N=NC(C=C1)=CC=C1C(C=C1)=CC=C1C(=O)NC1=CC=CC2=C1C(=O)C1=CC=CC=C1C2=O AJDUTMFFZHIJEM-UHFFFAOYSA-N 0.000 description 1
- KUWCVCMJPABJDI-UHFFFAOYSA-N n-[2-(4-amino-n-ethyl-3-methylanilino)ethyl]methanesulfonamide;sulfuric acid;dihydrate Chemical compound O.O.OS(O)(=O)=O.OS(O)(=O)=O.OS(O)(=O)=O.CS(=O)(=O)NCCN(CC)C1=CC=C(N)C(C)=C1.CS(=O)(=O)NCCN(CC)C1=CC=C(N)C(C)=C1 KUWCVCMJPABJDI-UHFFFAOYSA-N 0.000 description 1
- FWFGVMYFCODZRD-UHFFFAOYSA-N oxidanium;hydrogen sulfate Chemical compound O.OS(O)(=O)=O FWFGVMYFCODZRD-UHFFFAOYSA-N 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000001043 yellow dye Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
- G03C7/407—Development processes or agents therefor
- G03C7/413—Developers
Definitions
- the invention relates to a new composition for revealing color photographs.
- developer we use bodies reducing organic agents, generally cyclic, having at least two phenol groups (diphenol), or two amine groups (diamine) or these two groups (amino-phenol).
- diphenol phenol groups
- diamine amine groups
- amino-phenol amino-phenol
- CD chromogenic developer
- EP 2 in which the developer is of the CD 3 type, for example a compound chosen from the group consisting of 4-amino-N-ethyl-N- ( ⁇ methylsulfonamidoethyl) -m-toluidine sesquisulfate monohydrate, phosphate of the same compound, N-ethyl-N- ( ⁇ -methylsulfonaminoethyl) -p-methyl-1-4-phenylene- diamine sesquisulfonate monohydrate or N-ethyl-N- (e methylsulfanimoethyl ) -p-toluenediamine.
- This composition gives excellent results under current conditions of use and productivity for traditional development on paper.
- CD 4 used for the development, no longer of the insulated papers, but for that of the photographic films themselves also in color.
- CD 4 compounds give excellent results for the development of color photographic films.
- these CD 4 products generally lead to results at best comparable to those obtained with CD-type developers. In short, these compounds are also limited in speed.
- the invention overcomes these drawbacks. It relates to a developer for the development on paper of color photographs which enables the processing time to be reduced by almost half and thereby is compatible with the technical performance of the most modern automatic development equipment, without, however, the others. essential qualities of the photographs, such as the contrast, the chromatic balance, the veil are not appreciably affected.
- the mixing of the various components is carried out in a known manner, gradually and under usual conditions, in order to ensure perfect missibility of the various constituents and to attenuate the toxic effects of some of them.
- This composition is used to develop an impressed witness color paper. We operate at 40 ° C. After at least one hundred seconds of treatment, we obtain good chromatic balance, good density and good development.
- Example 1 is repeated, replacing the CD 3 developer with a CD 4 type developer of general formula: 4-amino-3-methyl-N- (f, hydroxyethyl) -aniline sulfate also marketed by Hunt Chemicals for the development of films negative.
- Example 1 is repeated by adding to the composition, at room temperature, one hundred and eighty five (185) grams of the same CD 4 developer as in Example 2.
- the duration of the treatment is reduced from a hundred seconds to only fifty seconds, while retaining an excellent chromatic balance, good density and good contrast.
- Example 3 is repeated, no longer adding 185 g, but one hundred and seventy (170) grams of the same compound CD 4 . After development and drying, a poor chromatic balance is obtained, with the blue-sensitive layer falling, which results in a crippling underdevelopment.
- Example 3 is repeated, but using not 185 g of this CD 4 , but two hundred and thirty (230) grams of this compound. We also obtain a chromatic imbalance resulting from the rise of the blue color, which results in an overdevelopment also redhibitory.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Paper (AREA)
- Color Printing (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8318339 | 1983-11-15 | ||
| FR8318339A FR2554935A1 (fr) | 1983-11-15 | 1983-11-15 | Composition pour reveler les photographies en couleurs |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0155428A1 true EP0155428A1 (de) | 1985-09-25 |
| EP0155428B1 EP0155428B1 (de) | 1987-08-12 |
Family
ID=9294245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19840420161 Expired EP0155428B1 (de) | 1983-11-15 | 1984-09-27 | Zusammensetzung für Farbfilmentwicklung |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0155428B1 (de) |
| JP (1) | JPS60118838A (de) |
| DE (1) | DE3465382D1 (de) |
| FR (1) | FR2554935A1 (de) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0366954A3 (en) * | 1988-10-03 | 1990-05-16 | Fuji Photo Film Co., Ltd. | Method for processing a silver halide color photosensitive material |
| EP0324335A3 (en) * | 1988-01-09 | 1990-06-13 | Agfa-Gevaert Ag | Colour photographic development system without overflow |
| AU607265B2 (en) * | 1987-10-21 | 1991-02-28 | Agfa-Gevaert A.G. | Photographic colour developer solution and a process for the development of a colour photographic material |
| EP0362794A3 (de) * | 1988-10-03 | 1991-05-08 | Fuji Photo Film Co., Ltd. | Verfahren zur Verarbeitung eines photoempfindlichen Materials für die Farbphotographie |
| EP0468781A1 (de) * | 1990-07-25 | 1992-01-29 | Konica Corporation | Verfahren zur Verarbeitung eines lichtempfindlichen Farbphotographischen Silberhalogenidmaterials |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3805699A1 (de) * | 1988-02-24 | 1989-09-07 | Agfa Gevaert Ag | Fotografische farbentwicklerloesung und verfahren zur entwicklung eines farbfotografischen materials |
| GB8804606D0 (en) * | 1988-02-26 | 1988-03-30 | Kodak Ltd | Method & apparatus for processing photographic colour materials |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB537970A (en) * | 1939-03-29 | 1941-07-16 | Eastman Kodak Co | Improvements in photographic processes and materials |
| DE954311C (de) * | 1953-12-06 | 1956-12-13 | Agfa Ag | Verfahren zur Herstellung von farbigen Bildern durch chromogene Entwicklung |
| FR1299899A (fr) * | 1960-09-09 | 1962-07-27 | Agfa Ag | Procédé de développement d'images photographiques, notamment d'images en couleurs, à l'aide de dérivés de p-dialkylamino aniline |
| GB1149794A (en) * | 1966-12-14 | 1969-04-23 | Ilford Ltd | Photographic silver halide colour development |
| EP0007593A1 (de) * | 1978-08-01 | 1980-02-06 | Agfa-Gevaert AG | Farbfotografisches Entwicklungsverfahren |
-
1983
- 1983-11-15 FR FR8318339A patent/FR2554935A1/fr not_active Withdrawn
-
1984
- 1984-09-27 EP EP19840420161 patent/EP0155428B1/de not_active Expired
- 1984-09-27 DE DE8484420161T patent/DE3465382D1/de not_active Expired
- 1984-10-26 JP JP22560784A patent/JPS60118838A/ja active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB537970A (en) * | 1939-03-29 | 1941-07-16 | Eastman Kodak Co | Improvements in photographic processes and materials |
| DE954311C (de) * | 1953-12-06 | 1956-12-13 | Agfa Ag | Verfahren zur Herstellung von farbigen Bildern durch chromogene Entwicklung |
| FR1299899A (fr) * | 1960-09-09 | 1962-07-27 | Agfa Ag | Procédé de développement d'images photographiques, notamment d'images en couleurs, à l'aide de dérivés de p-dialkylamino aniline |
| GB1149794A (en) * | 1966-12-14 | 1969-04-23 | Ilford Ltd | Photographic silver halide colour development |
| EP0007593A1 (de) * | 1978-08-01 | 1980-02-06 | Agfa-Gevaert AG | Farbfotografisches Entwicklungsverfahren |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU607265B2 (en) * | 1987-10-21 | 1991-02-28 | Agfa-Gevaert A.G. | Photographic colour developer solution and a process for the development of a colour photographic material |
| EP0324335A3 (en) * | 1988-01-09 | 1990-06-13 | Agfa-Gevaert Ag | Colour photographic development system without overflow |
| EP0366954A3 (en) * | 1988-10-03 | 1990-05-16 | Fuji Photo Film Co., Ltd. | Method for processing a silver halide color photosensitive material |
| EP0362794A3 (de) * | 1988-10-03 | 1991-05-08 | Fuji Photo Film Co., Ltd. | Verfahren zur Verarbeitung eines photoempfindlichen Materials für die Farbphotographie |
| EP0468781A1 (de) * | 1990-07-25 | 1992-01-29 | Konica Corporation | Verfahren zur Verarbeitung eines lichtempfindlichen Farbphotographischen Silberhalogenidmaterials |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2554935A1 (fr) | 1985-05-17 |
| JPS60118838A (ja) | 1985-06-26 |
| DE3465382D1 (en) | 1987-09-17 |
| EP0155428B1 (de) | 1987-08-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0021513B1 (de) | Photographische silberhalogenidhaltige Materialien, die dispergierte lichtabsorbierende Merostyryl-Farbstoffe enthalten | |
| FR2662022A1 (fr) | Tube cathodique et procede pour sa fabrication. | |
| EP0155428B1 (de) | Zusammensetzung für Farbfilmentwicklung | |
| LU86691A1 (fr) | Panneau coupe-feu transparent | |
| JPH0234373B2 (ja) | Harogenkaginshashinkankozairyo | |
| DE2607440A1 (de) | Photographisches aufzeichnungsmaterial | |
| JPS6249616B2 (de) | ||
| BE708305A (fr) | Nouveau procédé pour obtenir des émulsions aux halogénures d'argent à grand pouvoir couvrant | |
| JPS60117249A (ja) | カラー写真記録材料 | |
| FR2472594A1 (fr) | Composes du xanthene, produits et procedes photographiques les mettant en oeuvre | |
| JPS6216414B2 (de) | ||
| FR2479496A1 (fr) | Nouveaux composes du xanthene, produits et procedes photographiques les mettant en oeuvre | |
| JPH0420172B2 (de) | ||
| JPS6316731B2 (de) | ||
| FR2505062A1 (fr) | Elements recepteurs d'image, et produits et procedes photographiques de diffusion-transfert les utilisant | |
| FR2575154A1 (fr) | Procede de preparation d'anthraquinone | |
| CH616515A5 (en) | Photographic product containing a coloured coupler improving the rendition of colours | |
| BE596953A (de) | ||
| JP2021040617A5 (de) | ||
| JPS6333681B2 (de) | ||
| EP0065053B1 (de) | Wärme-, wasser- oder dampfentwickelbares Diazotypiematerial | |
| US447991A (en) | Cisco | |
| Jennings et al. | Synthetic color-forming binders for photographic emulsions | |
| JPS5945139B2 (ja) | カラ−写真感光材料 | |
| SU1101776A1 (ru) | Обрабатывающа композици дл цветного диффузионного фотографического процесса |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19850531 |
|
| AK | Designated contracting states |
Designated state(s): BE CH DE GB IT LI |
|
| 17Q | First examination report despatched |
Effective date: 19860623 |
|
| ITF | It: translation for a ep patent filed | ||
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): BE CH DE GB IT LI |
|
| REF | Corresponds to: |
Ref document number: 3465382 Country of ref document: DE Date of ref document: 19870917 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Effective date: 19870930 Ref country code: CH Effective date: 19870930 Ref country code: BE Effective date: 19870930 |
|
| BERE | Be: lapsed |
Owner name: KIS PHOTO INDUSTRIE S.A. Effective date: 19870930 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19880601 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19880927 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |