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Expired Canadian patentCanada

Fluorinated arachidonic acid derivatives

CA 1333397 C · Owner: Ducep, Jean Bernard · Inventors: Ducep, Jean Bernard; Nave, Jean-Francois

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

Fluorinated arachidonic derivatives are 5-lipoxygenase inhibitors which have the useful pharmacologic activity as antiallergy and anti-inflammatory agents and are useful for treating, for example, asthma, anaphylaxis allergy, rheumatoid arthritis, and psoriasis.

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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 December 6, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 6, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 31, 1988
GrantedDecember 6, 1994
Term endedDecember 6, 2011
Patent numberCA 1333397 C
Classification (IPC)C07C57/52 +2 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedOct 31, 1988Patent grantedDec 6, 1994Term endedDec 6, 2011

Sources & verification

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