Styrylamidines
CA 1071651 A · Owner: Bristol-Myers Squibb Company · Inventors: Matier, William L.; Comer, William T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Styrylamidines are prepared by treating styrylsulfonylamidines with base. The styrylamidines of the invention are effective in the prevention of aggregation of blood platelets and as analgesiics. The styrylsulfonylanidines of the invention which serve as precursors to the styrylamidines also have analgesic properties. Illustrative of the styrylanidines of the present invention are 4-amino-N-(4-aminostyryl)benzemidite and N-(3,4-dichlorostyryl)acetamidine. An example of a styrylsulfonylamidine is N-(styryl)sulfonylacetamidine.
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
- Granted February 12, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 12, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.