Expired Canadian patentCanada
Method of treating human prostatic adenocarcinoma
CA 2084775 C · Owner: Johnson, Randall Keith · Inventors: Johnson, Randall Keith
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Invented is a method of treating human prostatic adenocarcinoma by employing a steroid 5-.alpha.-reductase inhibiting compound or a combination of steroid 5-.alpha.-reductase inhibiting compounds.
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 June 21, 1991 and granted April 15, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 21, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 21, 1991
GrantedApril 15, 2003
Term endedJune 21, 2011
Patent numberCA 2084775 C
Classification (IPC)A61K31/58 +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.