HRP940441A2 - Method for preparing n,n-(dibenzohexatrienylene) ureas - Google Patents

Method for preparing n,n-(dibenzohexatrienylene) ureas

Info

Publication number: HRP940441A2
Authority: HR; Croatia
Prior art keywords: dibenzohexatrienylene; ureas; preparing
Prior art date: 1987-01-27

Application number

HRP-141/88A

Inventor

Georg Acklin

Ernest Aufderhaar

Guenter Kaupp

Bernhard Raez

Ulrich Vogel

Original Assignee

Ciba Geigy Ag

Priority date (The priority date 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 date listed.)

1987-01-27

Filing date

1994-08-10

Publication date

1997-02-28

1988-01-26 Priority claimed from YU14188A external-priority patent/YU14188A/en

1994-08-10 Application filed by Ciba Geigy Ag filed Critical Ciba Geigy Ag

1997-02-28 Publication of HRP940441A2 publication Critical patent/HRP940441A2/en

1999-08-31 Publication of HRP940441B1 publication Critical patent/HRP940441B1/en

Links

235000013877 carbamide Nutrition 0.000 title 1
150000003672 ureas Chemical class 0.000 title 1

HRP-141/88A 1987-01-27 1994-08-10 Method for preparing n,n-(dibenzohexatrienylene) ureas HRP940441B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
CH27687		1987-01-27
YU14188A YU14188A (en)	1987-01-27	1988-01-26	Process for preparing n,n(dibenzo hexatrienylic) urines

Publications (2)

Publication Number	Publication Date
HRP940441A2 true HRP940441A2 (en)	1997-02-28
HRP940441B1 HRP940441B1 (en)	1999-08-31

Family

ID=25684110

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
HRP-141/88A HRP940441B1 (en)	1987-01-27	1994-08-10	Method for preparing n,n-(dibenzohexatrienylene) ureas

Country Status (2)

Country	Link
HR (1)	HRP940441B1 (en)
SI (1)	SI8810141B (en)

1988
- 1988-01-26 SI SI8810141A patent/SI8810141B/en unknown
1994
- 1994-08-10 HR HRP-141/88A patent/HRP940441B1/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
HRP940441B1 (en)	1999-08-31
SI8810141A (en)	1996-02-29
SI8810141B (en)	1998-06-30

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Legal Events

Date	Code	Title	Description
1997-02-28	A1OB	Publication of a patent application
1997-08-26	AIPI	Request for the grant of a patent on the basis of a substantive examination of a patent application
1997-10-02	PPPP	Transfer of rights	Owner name: NOVARTIS AKTIENGESELLSCHAFT, CH
1999-08-31	B1PR	Patent granted
2006-12-13	ODRP	Renewal fee for the maintenance of a patent	Payment date: 20061213 Year of fee payment: 20
2008-07-27	PB20	Patent expired after termination of 20 years	Effective date: 20080127