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Expired Canadian patentCanada

Translucent lubricant

CA 2245487 C · Owner: Nch Corporation · Inventors: Barnes, John F.

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 translucent wire and cable lubricant containing from about 30 to about 80 weight percent of a mixture further comprising a resin and an oil from about, 10 to about 40 weight percent solvent from about 1 to about 15 weight percent thermoplastic synthetic polymer, from about 1 to about 15 weight percent oxidized wax, from about 1 to about 15 percent sheep tallow an extreme, pressure agent, an antiwear agent and a corrosion inhibitor.

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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 August 21, 1998 and granted April 30, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 21, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 21, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 21, 1998
GrantedApril 30, 2002
Term endedAugust 21, 2018
Patent numberCA 2245487 C
Classification (IPC)C10M143/00 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedAug 21, 1998Patent grantedApril 30, 2002Term endedAug 21, 2018

Sources & verification

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