A potent drug for treatment of erectile dysfunction
CA 2123312 A1 · Owner: Pharmacia & Upjohn Company · Inventors: Buhl, Allen E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method to induce or enhance an erection or treat erectile dysfunction through the administration of a pyridylguanidine compound preferably, N-cyano-N' (1,1-dimethyl propyl)-N''-3-pyridinyl guanidine, in low doses to the penis. Administration can be by injection into the corpus cavernosum of the penis or trandermal application.
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 December 2, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 2, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 2, 2014.
- 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.