Expired Canadian patentCanada
Peptic ulcer treatment method
CA 1291709 C · Owner: Ortho Pharmaceutical Corporation · Inventors: Rosenthale, Marvin E.; Shriver, David A.; Katz, Laurence B.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of treating peptic ulcer disease by topical application of a prostaglandin analog is described.
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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
- Granted November 5, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 5, 2008.
- 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 27, 1986
GrantedNovember 5, 1991
Term endedNovember 5, 2008
Patent numberCA 1291709 C
Classification (IPC)A61K31/55
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.