Canadian application, no grantCanada
Method for decreasing self-association of polypeptides
CA 2309955 A1 · Owner: Alza Corporation · Inventors: Leung, Iris K.M.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods for decreasing the tendency for a polypeptide drug to self-associate are disclosed. The methods utilize histidine compounds and allow for more efficient delivery of polypeptide agents using transdermal delivery techniques.
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 3, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 3, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 3, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 3, 1998
GrantedNo grant recorded
Term endedNovember 3, 2018
Patent numberCA 2309955 A1
Classification (IPC)A61K38/28 +2 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.