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Expired Canadian patentCanada

Semi-synthetic 4"-amino-oleandomycin derivatives

CA 1106366 A · Owner: Pfizer Inc. · Inventors: Sciavolino, Frank C.

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

DPC (Ph) 5818, SEMI-SYNTHETIC 4"-AMINO-OLEANDOMYCIN DERIVATIVES Abstract of the Disclosure, A series of 4"-deoxy-4"-amino-oleandomycin antibacterial agents and their preparation from semi-synthetic 4"-deoxy-4"-oxo-oleandomycin intermediates.

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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 August 4, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 4, 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.
FiledFebruary 2, 1978
GrantedAugust 4, 1981
Term endedAugust 4, 1998
Patent numberCA 1106366 A
Classification (IPC)C07H17/08

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedFeb 2, 1978Patent grantedAug 4, 1981Term endedAug 4, 1998

Sources & verification

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