Expired Canadian patentCanada
Gestodene-containing agent for transdermal administration
CA 2001618 C · Owner: Tauber, Ulrich · Inventors: Riedl, Jutta; Tack, Johannes Wilhelm; Schmidt-Gollwitzer, Karin
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An agent for transdermal administration contains gestodene, optionally in combination with one or more estrogen(s).
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 October 26, 1989 and granted June 20, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 26, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 26, 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.
FiledOctober 26, 1989
GrantedJune 20, 2000
Term endedOctober 26, 2009
Patent numberCA 2001618 C
Classification (IPC)A61K31/56 +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.