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Expired Canadian patentCanada

Friction reducers for lubricants and fuels

CA 1214454 A · Owner: Mobil Oil Corporation · Inventors: Braid, Milton, (Deceased); Horodysky, Andrew G.

CIPO record

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Abstract From the Canadian patent

FRICTION REDUCERS FOR LUBRICANTS AND FUELS ABSTRACT, N-alkoxyalkyl amides may be formed by the reaction of primary alkoxyalkylamines with carboxylic acids such as formic acid or, alternatively by ammonolysis of the appropriate formate ester. The resultant amides exhibit friction reducing properties when incorporated in additive amounts in lubricants and fuels. Extremely low concentrations of such additives, i.e. N-alkoxyalkyl formamides in lubricating oils result in vastly improved i.e. lowered coefficients, of friction. By virture of the friction reducing characteristics and lubricity properties, the additive compositions of the present invention exhibit reduced wear on rubbing surfaces.

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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

  • Granted November 25, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 25, 2003.
  • 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 29, 1983
GrantedNovember 25, 1986
Term endedNovember 25, 2003
Patent numberCA 1214454 A
Classification (IPC)C10M133/16 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedNov 29, 1983Patent grantedNov 25, 1986Term endedNov 25, 2003

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