Expired Canadian patentCanada
6-(2,3-dihydro-5-benzofuranyl) acetamido penicillin derivatives
CA 1106838 A · Owner: Merrell Pharmaceuticals Inc. · Inventors: Bohme, Ekkehard H.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
New 6-(2,3-dihydro-5-benzofuranyl)acetamido penicillin compounds are described which are useful as antibacterial agents.
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
- Granted August 11, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 11, 1998.
- 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 28, 1978
GrantedAugust 11, 1981
Term endedAugust 11, 1998
Patent numberCA 1106838 A
Classification (IPC)C07D499/44 +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.