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Expired Canadian patentCanada

Solid cleaners for heated food preparation surfaces

CA 2601799 C · Owner: 3M Innovative Properties Company · Inventors: Hobbs, Terry R.; Jing, Naiyong; Mitra, Smarajit

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 solid cleaner for heated surfaces is disclosed. The solid cleaner includes a solidifying agent including wax, and a cleaning agent. The solid cleaner is solid at room temperature and liquid at an elevated temperature. Methods of cleaning a heated surface and cleaning articles are also disclosed.

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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 March 14, 2006 and granted October 1, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 14, 2026.
  • 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.
FiledMarch 14, 2006
GrantedOctober 1, 2013
Term endedMarch 14, 2026
Patent numberCA 2601799 C
Classification (IPC)C11D17/00 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMarch 14, 2006Patent grantedOct 1, 2013Term endedMarch 14, 2026

Sources & verification

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