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Expired Canadian patentCanada

An improved non-metallic thread sealant and anti-seize compound

CA 2525561 C · Owner: Jet-Lube, Inc. · Inventors: Oldiges, Donald A. Jr.; Mcdonald, Herschel; Oldiges, Donald A. Iii

CIPO record

Overview

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

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Abstract From the Canadian patent

An anti-seize compound is disclosed for use on surfaces of threaded connections made of speciality alloys such as high nickel or chrome ferrous alloys or other speciality alloys prone to galling under high stress conditions. The compound using a metal fluoride as the anti-seize film forming agent at least above about 5wt%.

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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 May 14, 2004 and granted August 6, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 14, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 14, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 14, 2004
GrantedAugust 6, 2013
Term endedMay 14, 2024
Patent numberCA 2525561 C
Classification (IPC)C10M169/04 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedMay 14, 2004Patent grantedAug 6, 2013Term endedMay 14, 2024

Sources & verification

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