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Expired Canadian patentCanada

Piston of an internal combustion engine

CA 1288014 C · Owner: Kievsky Avtomobilno-Dorozhny Institut Imeni 60-Letia Velikoi Oktyabrskoi Sotsialisticheskoi Revoljutsii · Inventors: Storchevoi, Nikolai M.

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 piston of an internal combustion engine having a skirt with a hole to receive a piston pin the axis of which is perpendicular to the axis of the skirt the side surface of which is provided with two recesses arranged at the opposite sides of the piston pin hole axis and having cylindrical surfaces axes of which are parallel with the axis of the skirt, the pins receiving inserts having a cylindrical outer surface engageable with the surface of the cylinder of the internal combustion engine this outer cylindrical surface having a radius of curvature equal to the radius of the cylinder of the engine and having an inner cylindrical surface of a radius of curvature equal to the radius of …

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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 August 27, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 27, 2008.
  • 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 11, 1987
GrantedAugust 27, 1991
Term endedAugust 27, 2008
Patent numberCA 1288014 C
Classification (IPC)F02G3/00

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedMay 11, 1987Patent grantedAug 27, 1991Term endedAug 27, 2008

Sources & verification

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