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Expired Canadian patentCanada

Detergent granules and process for their manufacture

CA 2549854 C · Owner: Boerefijn, Renee · Inventors: Goedendorp, Pieter Leendert; Boerefijn, Renee

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

A granulate detergent product comprising coated granules which comprise a functional core which comprises one or more detersive agents selected from surfactants and detergency builders, the coated granules further comprising up to 10% by weight of a coating which comprises encapsulated perfume.

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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 November 19, 2004 and granted September 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 19, 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.
FiledNovember 19, 2004
GrantedSeptember 18, 2012
Term endedNovember 19, 2024
Patent numberCA 2549854 C
Classification (IPC)C11D17/00 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedNov 19, 2004Patent grantedSep 18, 2012Term endedNov 19, 2024

Sources & verification

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