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Expired Canadian patentCanada

Acryloxymethyl substituted fatty compounds

CA 1287353 C · Owner: Virnig, Michael J. · Inventors: Virnig, Michael J.; Clark, James P.; Didomenico, Edward D.

CIPO record

Overview

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Abstract From the Canadian patent

Acryloxymethyl fatty compounds are provided which are useful as monomers in the preparation of radiation curable coatings. The preferred compounds are acrylate or methacrylate esters of 9(10)-(hydroxymethyl)stearonitrile, 9(10)-(hydroxymethyl)-N,N-dimethylstearamide methyl 9(10)-(hydroxymethyl)-stearate, N-acetyl-N-methyl 9(10)-(hydroxymethyl)-nonadecanamine, 9(10)-cyano-octadecanol 9(10)-(carboxydimethyl-, amino)octadecanol 9(10)-(carboxymethyoxy)octadecanol and 9(10)-(Nacetyl-N-methyl-aminomethyl)octadecanol.

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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 6, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 6, 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.
FiledOctober 7, 1986
GrantedAugust 6, 1991
Term endedAugust 6, 2008
Patent numberCA 1287353 C
Classification (IPC)C07C69/54 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedOct 7, 1986Patent grantedAug 6, 1991Term endedAug 6, 2008

Sources & verification

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