Novel aminobenzoates
CA 2004127 C · Owner: Edenhofer, Albrecht · Inventors: Edenhofer, Albrecht; Trzeciak, Arnold; Muller, Marcel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of the formula, (see formula I) wherein R1 is a group of the formula, -C(H,R a)-(CH2)n-NH-R b (R-1) (T)1 or 0-C6H4-CH2NH-R c (R-2), (T)1 or 0-C6H4-(NH)1 or 0-C(NH)NH2 (R-3) (see formula II), R3 is H, -CONH2, -COR f -COOR g or aryl, R2 is H, CH3, OCH3, NO2 halogen, NH2, can be used as medicaments for the therapy and prophylaxis of disorders such as thromboses stroke, cardiac infarct, inflammations and arteriosclerosis as well as for the treatment of tumours.
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 November 29, 1989 and granted April 23, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 29, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 29, 2011.
- 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.