Expired Canadian patentCanada
Naphthylglycyl cephalosporin derivatives
CA 1213580 A · Owner: Eli Lilly And Company · Inventors: Turner, Jan R.; Cooper, Robin D.G.; Blaszczak, Larry C.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Naphthylglycyl and tetrahydronaphthylglycyl cephalosporins are potent antibacterial agents and are particularly useful as oral treatments for upper respiratory infections.
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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 4, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 4, 2003.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 11, 1984
GrantedNovember 4, 1986
Term endedNovember 4, 2003
Patent numberCA 1213580 A
Classification (IPC)C07D501/20 +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.