FR2836954B1 - Profil de paroi d'extremite pour une utilisation dans les turbomachines - Google Patents
Profil de paroi d'extremite pour une utilisation dans les turbomachinesInfo
- Publication number
- FR2836954B1 FR2836954B1 FR0301678A FR0301678A FR2836954B1 FR 2836954 B1 FR2836954 B1 FR 2836954B1 FR 0301678 A FR0301678 A FR 0301678A FR 0301678 A FR0301678 A FR 0301678A FR 2836954 B1 FR2836954 B1 FR 2836954B1
- Authority
- FR
- France
- Prior art keywords
- turbomachines
- wall profile
- extended wall
- extended
- profile
- 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.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/141—Shape, i.e. outer, aerodynamic form
- F01D5/142—Shape, i.e. outer, aerodynamic form of the blades of successive rotor or stator blade-rows
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/141—Shape, i.e. outer, aerodynamic form
- F01D5/142—Shape, i.e. outer, aerodynamic form of the blades of successive rotor or stator blade-rows
- F01D5/143—Contour of the outer or inner working fluid flow path wall, i.e. shroud or hub contour
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S415/00—Rotary kinetic fluid motors or pumps
- Y10S415/914—Device to control boundary layer
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/093,989 US6669445B2 (en) | 2002-03-07 | 2002-03-07 | Endwall shape for use in turbomachinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2836954A1 FR2836954A1 (fr) | 2003-09-12 |
| FR2836954B1 true FR2836954B1 (fr) | 2008-04-04 |
Family
ID=22242098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0301678A Expired - Fee Related FR2836954B1 (fr) | 2002-03-07 | 2003-02-12 | Profil de paroi d'extremite pour une utilisation dans les turbomachines |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6669445B2 (fr) |
| JP (1) | JP3961436B2 (fr) |
| DE (1) | DE10310150B4 (fr) |
| FR (1) | FR2836954B1 (fr) |
| GB (1) | GB2388162B (fr) |
Families Citing this family (90)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4913326B2 (ja) * | 2004-01-05 | 2012-04-11 | 株式会社Ihi | シール構造及びタービンノズル |
| US7690890B2 (en) * | 2004-09-24 | 2010-04-06 | Ishikawajima-Harima Heavy Industries Co. Ltd. | Wall configuration of axial-flow machine, and gas turbine engine |
| US7217096B2 (en) * | 2004-12-13 | 2007-05-15 | General Electric Company | Fillet energized turbine stage |
| US7134842B2 (en) * | 2004-12-24 | 2006-11-14 | General Electric Company | Scalloped surface turbine stage |
| US7249933B2 (en) * | 2005-01-10 | 2007-07-31 | General Electric Company | Funnel fillet turbine stage |
| US7220100B2 (en) * | 2005-04-14 | 2007-05-22 | General Electric Company | Crescentic ramp turbine stage |
| GB0518628D0 (en) | 2005-09-13 | 2005-10-19 | Rolls Royce Plc | Axial compressor blading |
| JP4616781B2 (ja) * | 2006-03-16 | 2011-01-19 | 三菱重工業株式会社 | タービン翼列エンドウォール |
| US7874794B2 (en) * | 2006-03-21 | 2011-01-25 | General Electric Company | Blade row for a rotary machine and method of fabricating same |
| US8366399B2 (en) * | 2006-05-02 | 2013-02-05 | United Technologies Corporation | Blade or vane with a laterally enlarged base |
| US7887297B2 (en) * | 2006-05-02 | 2011-02-15 | United Technologies Corporation | Airfoil array with an endwall protrusion and components of the array |
| US8511978B2 (en) * | 2006-05-02 | 2013-08-20 | United Technologies Corporation | Airfoil array with an endwall depression and components of the array |
| US7581930B2 (en) | 2006-08-16 | 2009-09-01 | United Technologies Corporation | High lift transonic turbine blade |
| US8413709B2 (en) * | 2006-12-06 | 2013-04-09 | General Electric Company | Composite core die, methods of manufacture thereof and articles manufactured therefrom |
| US20080135721A1 (en) * | 2006-12-06 | 2008-06-12 | General Electric Company | Casting compositions for manufacturing metal casting and methods of manufacturing thereof |
| US7624787B2 (en) * | 2006-12-06 | 2009-12-01 | General Electric Company | Disposable insert, and use thereof in a method for manufacturing an airfoil |
| US7938168B2 (en) * | 2006-12-06 | 2011-05-10 | General Electric Company | Ceramic cores, methods of manufacture thereof and articles manufactured from the same |
| US8884182B2 (en) | 2006-12-11 | 2014-11-11 | General Electric Company | Method of modifying the end wall contour in a turbine using laser consolidation and the turbines derived therefrom |
| US7487819B2 (en) * | 2006-12-11 | 2009-02-10 | General Electric Company | Disposable thin wall core die, methods of manufacture thereof and articles manufactured therefrom |
| JP4838733B2 (ja) * | 2007-01-12 | 2011-12-14 | 三菱重工業株式会社 | ガスタービンの翼構造 |
| GB0704426D0 (en) * | 2007-03-08 | 2007-04-18 | Rolls Royce Plc | Aerofoil members for a turbomachine |
| JP5283855B2 (ja) * | 2007-03-29 | 2013-09-04 | 株式会社Ihi | ターボ機械の壁、及びターボ機械 |
| DE102007020025A1 (de) | 2007-04-27 | 2008-10-30 | Honda Motor Co., Ltd. | Form eines Gaskanals in einer Axialströmungs-Gasturbinenmaschine |
| JP4929193B2 (ja) * | 2008-01-21 | 2012-05-09 | 三菱重工業株式会社 | タービン翼列エンドウォール |
| JP5291355B2 (ja) * | 2008-02-12 | 2013-09-18 | 三菱重工業株式会社 | タービン翼列エンドウォール |
| FR2928172B1 (fr) * | 2008-02-28 | 2015-07-17 | Snecma | Aube avec plateforme non axisymetrique lineaire. |
| FR2928174B1 (fr) * | 2008-02-28 | 2011-05-06 | Snecma | Aube avec plateforme non axisymetrique : creux et bosse sur extrados. |
| JP5010507B2 (ja) * | 2008-03-03 | 2012-08-29 | 三菱重工業株式会社 | 軸流式ターボ機械のタービン段、及びガスタービン |
| DE102008031789A1 (de) * | 2008-07-04 | 2010-01-07 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Verfahren und Vorrichtung zur Beeinflussung von Sekundärströmungen bei einer Turbomaschine |
| US8206115B2 (en) * | 2008-09-26 | 2012-06-26 | General Electric Company | Scalloped surface turbine stage with trailing edge ridges |
| DE102008060424A1 (de) | 2008-12-04 | 2010-06-10 | Rolls-Royce Deutschland Ltd & Co Kg | Strömungsmaschine mit Seitenwand-Grenzschicht-Barriere |
| US8647067B2 (en) * | 2008-12-09 | 2014-02-11 | General Electric Company | Banked platform turbine blade |
| US8459956B2 (en) * | 2008-12-24 | 2013-06-11 | General Electric Company | Curved platform turbine blade |
| US8231353B2 (en) * | 2008-12-31 | 2012-07-31 | General Electric Company | Methods and apparatus relating to improved turbine blade platform contours |
| US8105037B2 (en) * | 2009-04-06 | 2012-01-31 | United Technologies Corporation | Endwall with leading-edge hump |
| US8439643B2 (en) * | 2009-08-20 | 2013-05-14 | General Electric Company | Biformal platform turbine blade |
| FR2950942B1 (fr) * | 2009-10-02 | 2013-08-02 | Snecma | Rotor d'un compresseur de turbomachine a paroi d'extremite interne optimisee |
| US8360731B2 (en) * | 2009-12-04 | 2013-01-29 | United Technologies Corporation | Tip vortex control |
| US8356975B2 (en) * | 2010-03-23 | 2013-01-22 | United Technologies Corporation | Gas turbine engine with non-axisymmetric surface contoured vane platform |
| US9976433B2 (en) | 2010-04-02 | 2018-05-22 | United Technologies Corporation | Gas turbine engine with non-axisymmetric surface contoured rotor blade platform |
| US8727716B2 (en) * | 2010-08-31 | 2014-05-20 | General Electric Company | Turbine nozzle with contoured band |
| US8684684B2 (en) * | 2010-08-31 | 2014-04-01 | General Electric Company | Turbine assembly with end-wall-contoured airfoils and preferenttial clocking |
| US8602740B2 (en) | 2010-09-08 | 2013-12-10 | United Technologies Corporation | Turbine vane airfoil |
| US8393870B2 (en) | 2010-09-08 | 2013-03-12 | United Technologies Corporation | Turbine blade airfoil |
| FR2971540B1 (fr) * | 2011-02-10 | 2013-03-08 | Snecma | Ensemble pale-plateforme pour ecoulement supersonique |
| CH704825A1 (de) | 2011-03-31 | 2012-10-15 | Alstom Technology Ltd | Turbomaschinenrotor. |
| US8926267B2 (en) | 2011-04-12 | 2015-01-06 | Siemens Energy, Inc. | Ambient air cooling arrangement having a pre-swirler for gas turbine engine blade cooling |
| US8721291B2 (en) | 2011-07-12 | 2014-05-13 | Siemens Energy, Inc. | Flow directing member for gas turbine engine |
| US8864452B2 (en) | 2011-07-12 | 2014-10-21 | Siemens Energy, Inc. | Flow directing member for gas turbine engine |
| US8915706B2 (en) | 2011-10-18 | 2014-12-23 | General Electric Company | Transition nozzle |
| US9017030B2 (en) | 2011-10-25 | 2015-04-28 | Siemens Energy, Inc. | Turbine component including airfoil with contour |
| US8992179B2 (en) | 2011-10-28 | 2015-03-31 | General Electric Company | Turbine of a turbomachine |
| US8967959B2 (en) | 2011-10-28 | 2015-03-03 | General Electric Company | Turbine of a turbomachine |
| US9051843B2 (en) | 2011-10-28 | 2015-06-09 | General Electric Company | Turbomachine blade including a squeeler pocket |
| US9255480B2 (en) | 2011-10-28 | 2016-02-09 | General Electric Company | Turbine of a turbomachine |
| US8807930B2 (en) | 2011-11-01 | 2014-08-19 | United Technologies Corporation | Non axis-symmetric stator vane endwall contour |
| CN102536329B (zh) * | 2011-12-31 | 2014-04-02 | 西北工业大学 | 一种压气机/涡轮环形叶栅的非轴对称端壁造型方法 |
| US9085985B2 (en) * | 2012-03-23 | 2015-07-21 | General Electric Company | Scalloped surface turbine stage |
| ES2552650T3 (es) | 2012-04-13 | 2015-12-01 | Mtu Aero Engines Gmbh | Álabe para una turbomáquina, disposición de álabes y turbomáquina |
| BR112014026360A2 (pt) | 2012-04-23 | 2017-06-27 | Gen Electric | aerofólio de turbina e pá de turbina |
| US9267386B2 (en) | 2012-06-29 | 2016-02-23 | United Technologies Corporation | Fairing assembly |
| JP6035946B2 (ja) * | 2012-07-26 | 2016-11-30 | 株式会社Ihi | エンジンダクト及び航空機エンジン |
| EP2885506B8 (fr) | 2012-08-17 | 2021-03-31 | Raytheon Technologies Corporation | Surface profilée de chemin d'écoulement |
| US20140154068A1 (en) * | 2012-09-28 | 2014-06-05 | United Technologies Corporation | Endwall Controuring |
| EP2746533B1 (fr) * | 2012-12-19 | 2015-04-01 | MTU Aero Engines GmbH | Grille d'aube et turbomachine |
| WO2014130332A1 (fr) | 2013-02-21 | 2014-08-28 | United Technologies Corporation | Turbine à gaz ayant un étage désaccordé |
| US10612407B2 (en) | 2013-02-28 | 2020-04-07 | United Technologies Corporation | Contoured blade outer air seal for a gas turbine engine |
| US9879540B2 (en) * | 2013-03-12 | 2018-01-30 | Pratt & Whitney Canada Corp. | Compressor stator with contoured endwall |
| US10196897B2 (en) | 2013-03-15 | 2019-02-05 | United Technologies Corporation | Fan exit guide vane platform contouring |
| ES2765858T3 (es) * | 2013-05-24 | 2020-06-11 | MTU Aero Engines AG | Cascada de álabes para una turbina y la turbina asociada |
| EP2806103B1 (fr) * | 2013-05-24 | 2019-07-17 | MTU Aero Engines AG | Grille d'aubes et turbomachine |
| WO2015023331A2 (fr) * | 2013-06-10 | 2015-02-19 | United Technologies Corporation | Aube de turbine à épaisseur de paroi non uniforme |
| US11111801B2 (en) | 2013-06-17 | 2021-09-07 | Raytheon Technologies Corporation | Turbine vane with platform pad |
| EP2835499B1 (fr) * | 2013-08-06 | 2019-10-09 | MTU Aero Engines GmbH | Grille d'aubes et turbomachine associée |
| US9388704B2 (en) | 2013-11-13 | 2016-07-12 | Siemens Energy, Inc. | Vane array with one or more non-integral platforms |
| WO2015099869A2 (fr) | 2013-11-18 | 2015-07-02 | United Technologies Corporation | Traitements de paroi d'extrémité à aube à superficie variable |
| WO2015076961A1 (fr) | 2013-11-22 | 2015-05-28 | United Technologies Corporation | Tranchée de façonnage de paroi d'extrémité |
| CN106661944B (zh) | 2014-06-18 | 2019-03-19 | 西门子能源公司 | 用于燃气涡轮发动机的端壁构造 |
| US10151210B2 (en) | 2014-09-12 | 2018-12-11 | United Technologies Corporation | Endwall contouring for airfoil rows with varying airfoil geometries |
| GB201418948D0 (en) * | 2014-10-24 | 2014-12-10 | Rolls Royce Plc | Row of aerofoil members |
| US20170009589A1 (en) * | 2015-07-09 | 2017-01-12 | Siemens Energy, Inc. | Gas turbine engine blade with increased wall thickness zone in the trailing edge-hub region |
| DE102016211315A1 (de) | 2016-06-23 | 2017-12-28 | MTU Aero Engines AG | Lauf- oder Leitschaufel mit erhabenen Bereichen |
| US10577955B2 (en) | 2017-06-29 | 2020-03-03 | General Electric Company | Airfoil assembly with a scalloped flow surface |
| US10890072B2 (en) * | 2018-04-05 | 2021-01-12 | Raytheon Technologies Corporation | Endwall contour |
| JP7190370B2 (ja) * | 2019-02-28 | 2022-12-15 | 三菱重工業株式会社 | 軸流タービン |
| US12442309B2 (en) * | 2019-09-12 | 2025-10-14 | General Electric Company | Nozzle assembly for turbine engine |
| DE102021109844A1 (de) * | 2021-04-19 | 2022-10-20 | MTU Aero Engines AG | Gasturbinen-Schaufelanordnung |
| US20230073422A1 (en) * | 2021-09-03 | 2023-03-09 | Pratt & Whitney Canada Corp. | Stator with depressions in gaspath wall adjacent trailing edges |
| US11725526B1 (en) * | 2022-03-08 | 2023-08-15 | General Electric Company | Turbofan engine having nacelle with non-annular inlet |
| US20250297571A1 (en) * | 2024-03-19 | 2025-09-25 | General Electric Company | System and apparatus for reducing bow waves in gas turbine engines |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2735612A (en) * | 1956-02-21 | hausmann | ||
| US3989406A (en) * | 1974-11-26 | 1976-11-02 | Bolt Beranek And Newman, Inc. | Method of and apparatus for preventing leading edge shocks and shock-related noise in transonic and supersonic rotor blades and the like |
| US4194869A (en) * | 1978-06-29 | 1980-03-25 | United Technologies Corporation | Stator vane cluster |
| DE3202855C1 (de) * | 1982-01-29 | 1983-03-31 | MTU Motoren- und Turbinen-Union München GmbH, 8000 München | Einrichtung zur Verminderung von Sekundaerstroemungsverlusten in einem beschaufelten Stroemungskanal |
| US5275531A (en) * | 1993-04-30 | 1994-01-04 | Teleflex, Incorporated | Area ruled fan blade ends for turbofan jet engine |
| US5397215A (en) * | 1993-06-14 | 1995-03-14 | United Technologies Corporation | Flow directing assembly for the compression section of a rotary machine |
| GB2281356B (en) * | 1993-08-20 | 1997-01-29 | Rolls Royce Plc | Gas turbine engine turbine |
| JP2906939B2 (ja) * | 1993-09-20 | 1999-06-21 | 株式会社日立製作所 | 軸流圧縮機 |
| DE19650656C1 (de) * | 1996-12-06 | 1998-06-10 | Mtu Muenchen Gmbh | Turbomaschine mit transsonischer Verdichterstufe |
| GB9823840D0 (en) * | 1998-10-30 | 1998-12-23 | Rolls Royce Plc | Bladed ducting for turbomachinery |
| DE19941134C1 (de) * | 1999-08-30 | 2000-12-28 | Mtu Muenchen Gmbh | Schaufelkranz für eine Gasturbine |
| US6511294B1 (en) * | 1999-09-23 | 2003-01-28 | General Electric Company | Reduced-stress compressor blisk flowpath |
| US6561761B1 (en) * | 2000-02-18 | 2003-05-13 | General Electric Company | Fluted compressor flowpath |
| US6524070B1 (en) * | 2000-08-21 | 2003-02-25 | General Electric Company | Method and apparatus for reducing rotor assembly circumferential rim stress |
| US6471474B1 (en) * | 2000-10-20 | 2002-10-29 | General Electric Company | Method and apparatus for reducing rotor assembly circumferential rim stress |
-
2002
- 2002-03-07 US US10/093,989 patent/US6669445B2/en not_active Expired - Lifetime
-
2003
- 2003-02-12 FR FR0301678A patent/FR2836954B1/fr not_active Expired - Fee Related
- 2003-03-07 DE DE10310150A patent/DE10310150B4/de not_active Expired - Fee Related
- 2003-03-07 JP JP2003061211A patent/JP3961436B2/ja not_active Expired - Fee Related
- 2003-03-07 GB GB0305320A patent/GB2388162B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| GB2388162A (en) | 2003-11-05 |
| JP2003269384A (ja) | 2003-09-25 |
| JP3961436B2 (ja) | 2007-08-22 |
| GB0305320D0 (en) | 2003-04-09 |
| US6669445B2 (en) | 2003-12-30 |
| US20030170124A1 (en) | 2003-09-11 |
| FR2836954A1 (fr) | 2003-09-12 |
| DE10310150A1 (de) | 2003-09-25 |
| DE10310150B4 (de) | 2005-05-12 |
| GB2388162B (en) | 2004-11-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR2836954B1 (fr) | Profil de paroi d'extremite pour une utilisation dans les turbomachines | |
| EP1642112A4 (fr) | Methode d'application uniforme d'un liquide dans une zone de reactif reactive | |
| FR2860039B1 (fr) | Realisation de l'etancheite dans un turboreacteur pour le prelevement cabine par joints double sens a lamelles | |
| EP1786992A4 (fr) | Bardeau doté de jupes de déviation de l'eau à emboîtement | |
| FR2808068B1 (fr) | Joint d'etancheite metallique | |
| NO20030641D0 (no) | Gjenget forbindelse for kontinuerlige rörprofiler | |
| EP1493286A4 (fr) | Determination de l'etat d'une station dans un reseau local | |
| FR2780767B1 (fr) | Paroi pour reservoir cryogenique | |
| DE60014863D1 (de) | Fluidpumpe | |
| NO20033576D0 (no) | Pakning nede i brönnhullet | |
| DE60305452D1 (de) | Flüssige reinigungsmittel | |
| DE19980588T1 (de) | Fluidpumpe | |
| FR2874222B1 (fr) | Machine pour creuser une tranchee et realiser une paroi dans ladite tranchee | |
| FR2822179B1 (fr) | Element pour maintenir et regler la distance a une paroi d'un profile destine a recevoir un parement | |
| EP1599262A4 (fr) | Glissoire d'eau ludique pour enfants | |
| AT3386U3 (de) | Profil | |
| EP1602282A4 (fr) | Composition d' mulsion moussante du type eau dans l'huile | |
| ITTO20040894A1 (it) | Chiusura con funzione di sicurezza termica in particolare per l'ermetizzazione della camera di lavoro di giunti idrodinamici | |
| FR2822519B1 (fr) | Raccord pour tuyau | |
| DE69921499D1 (de) | Flüssigkeitsdichte Kupplung | |
| FR2849461B1 (fr) | Systeme pour maintenir et regler la distance a une paroi d'un profile destine a l'appui d'un parement | |
| MA25714A1 (fr) | Agent d'amendement et agent pour la dynamisation de l'eau. | |
| FR2780291B1 (fr) | Paroi d'escalade | |
| FR2801922B1 (fr) | Arrangement de joint pour vitrage | |
| FR2864151B1 (fr) | Boitier de sortie d'eau |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |
Effective date: 20081031 |
|
| D3 | Ip right revived | ||
| PLFP | Fee payment |
Year of fee payment: 14 |
|
| PLFP | Fee payment |
Year of fee payment: 15 |
|
| CA | Change of address |
Effective date: 20170324 |
|
| PLFP | Fee payment |
Year of fee payment: 16 |
|
| PLFP | Fee payment |
Year of fee payment: 18 |
|
| CD | Change of name or company name |
Owner name: RAYTHEON TECHNOLOGIES CORPORATION, US Effective date: 20210315 |
|
| ST | Notification of lapse |
Effective date: 20211005 |