Expired Canadian patentCanada
Process for the manufacture of anilinofumarate via chloromaleate or chlorofumarate or mixtures thereof
CA 2007653 C · Owner: American Cyanamid Company · Inventors: Cevasco, Albert Anthony; Maulding, Donald Roy
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided a novel process for the manufacture of anilinofumarate via chloromaleate or chlorofumarate or mixtures thereof.
Read the whole patent
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
- Filed January 12, 1990 and granted April 6, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 12, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 12, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 12, 1990
GrantedApril 6, 1999
Term endedJanuary 12, 2010
Patent numberCA 2007653 C
Classification (IPC)C07C229/44 +2 more
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.