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Expired Canadian patentCanada

Fatty acid soap/fatty acid bars which process and have good lather

CA 2551137 C · Owner: Nunn, Charles Craig · Inventors: Farrell, Terence James; Nunn, Charles Craig

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

The invention relates to bar compositions comprising fatty acid soap and synthetic surfactant which are structured in such manner (i.e. through specific ternary system) that bars can extrude well and have good properties (e.g. lather), even at low synthetic surfactant level.

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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

  • Filed December 15, 2004 and granted October 23, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 15, 2024.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 15, 2004
GrantedOctober 23, 2012
Term endedDecember 15, 2024
Patent numberCA 2551137 C
Classification (IPC)C11D17/00 +1 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedDec 15, 2004Patent grantedOct 23, 2012Term endedDec 15, 2024

Sources & verification

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