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Expired Canadian patentCanada

Process for industrially synthesizing 2(2s, 3as, 7as) perhydroindole-2-carboxylic acid

CA 1338015 C · Owner: Remond, Georges · Inventors: Remond, Georges; Baliarda, Jean; Vincent, Michel

CIPO record

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

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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 30, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 30, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 7, 1988
GrantedJanuary 30, 1996
Term endedJanuary 30, 2013
Patent numberCA 1338015 C
Classification (IPC)C07D209/42 +1 more

Timeline

Timeline From CIPO dates

198919921995199820012004200720102013Application filedSep 7, 1988Patent grantedJan 30, 1996Term endedJan 30, 2013

Sources & verification

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