Expired Canadian patentCanada
2-chloro-4-((cyanomethyl)thio)phenyl n-methyl carbamate
CA 1321601 C · Owner: Merrell Dow Pharmaceuticals Inc. · Inventors: Reifschneider, Walter
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The novel compound, 2-chloro-4-((cyanomethyl)thio)phenyl N-methyl carbamate, is a therapeutic agent in the treatment of patients afflicted with carcinomas or lymphocytic leukemia. C-34,890
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted August 24, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 24, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 9, 1987
GrantedAugust 24, 1993
Term endedAugust 24, 2010
Patent numberCA 1321601 C
Classification (IPC)C07C323/63 +1 more
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.