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Expired Canadian patentCanada

Silica gel-lipid composition

CA 1291660 C · Owner: Hammond, John Edward · Inventors: Ruff, John; Hammond, John Edward; Sarich, Nancy Jane

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

A composition which modifies the physical characteristics of a lipid, is disclosed. This composition comprises silica gel and a lipid. A non-waxy, no melt chocolate may be prepared using the silica gel-lipid composition of the present invention by combining silica gel with cocoa butter wherein the cocoa butter serves as the lipid source.

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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 November 5, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 5, 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.
FiledSeptember 10, 1986
GrantedNovember 5, 1991
Term endedNovember 5, 2008
Patent numberCA 1291660 C
Classification (IPC)A23G1/00 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedSep 10, 1986Patent grantedNov 5, 1991Term endedNov 5, 2008

Sources & verification

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