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Expired Canadian patentCanada

Fat process and composition

CA 1114396 A · Owner: Unilever Limited · Inventors: Coleman, Michael H.; Macrae, Alasdair R.

CIPO record

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

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Abstract From the Canadian patent

Fats and glyceride oils especially for edible purposes are improved by an esterification reaction in the presence as catalyst of n lipaso enzyme with a small amount of water to activate the enzyme which may be, selective in ?etion, to replace fatty acid radicals on the glyceride molecules by others, which may be present as free fatty acids.

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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 15, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 15, 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 10, 1977
GrantedDecember 15, 1981
Term endedDecember 15, 1998
Patent numberCA 1114396 A
Classification (IPC)C11C3/00 +2 more

Timeline

Timeline From CIPO dates

1978198119841987199019931996Application filedFeb 10, 1977Patent grantedDec 15, 1981Term endedDec 15, 1998

Sources & verification

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