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Expired Canadian patentCanada

Aerocavin and aerocyanidin - antibiotics

CA 1287005 C · Owner: Sykes, Richard Brook · Inventors: Sykes, Richard Brook; Liu, Wen-Chih; Singh, Pushpa

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

Aerocavin, a novel antibiotic substance having the structure, and aerocyanidin a novel antibiotic substance, having the structure can be prepared by cultivation of the microorganism Aerocavin caviae SC 14,030 A.T.C.C. No. 53434.

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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 July 30, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 30, 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.
FiledJanuary 30, 1987
GrantedJuly 30, 1991
Term endedJuly 30, 2008
Patent numberCA 1287005 C
Classification (IPC)C07D313/00 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedJan 30, 1987Patent grantedJuly 30, 1991Term endedJuly 30, 2008

Sources & verification

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