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Expired Canadian patentCanada

An endless belt for use with heavy duty track vehicles

CA 2255087 C · Owner: Camoplast Solideal Inc. · Inventors: Lussier, Alain

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

An endless belt for use with a heavy duty track vehicle comprises a body made of polymeric material wherein a series of longitudinally spaced guide members are integrally formed to the inner surface thereof while two rows of longitudinally spaced tread members are integrally formed to the outer surface thereof. Each tread member in each row has an outer edge area adjacent the outer edge of the body and an inner edge area terminating substantially at mid-section of the body. Each tread member of the first row is longitudinally offset relative to an adjacent tread member of the second row. Each inner edge area of the tread members is in vertical alignment with a corresponding one of the guide …

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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 November 30, 1998 and granted May 8, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 30, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 30, 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.
FiledNovember 30, 1998
GrantedMay 8, 2001
Term endedNovember 30, 2018
Patent numberCA 2255087 C
Classification (IPC)B62D55/24 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedNov 30, 1998Patent grantedMay 8, 2001Term endedNov 30, 2018

Sources & verification

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