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Expired Canadian patentCanada

Antibacterial agents and potentiators of carbapenem antibiotics

CA 1312607 C · Owner: Merck & Co. Inc. · Inventors: Schoen, William R.; Taniguchi, Masao; Patchett, Arthur A.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

New 3-(1-aminoalkylphosphinyl)-(2-substituted)propionic acids are described which display antibacterial activity and potentiate carbapenem antibiotics.

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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 January 12, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 12, 2010.
  • 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, 1987
GrantedJanuary 12, 1993
Term endedJanuary 12, 2010
Patent numberCA 1312607 C
Classification (IPC)C07F9/30 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedNov 3, 1987Patent grantedJan 12, 1993Term endedJan 12, 2010

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.