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Expired Canadian patentCanada

Splicing joint and method for synchronous drive belt

CA 2448854 C · Owner: Veyance Technologies, Inc. · Inventors: Gregg, Michael John William; Nguyen, Hong Xuan

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

A splice joint is for joining first and second synchronous drive belt ends of the belt type comprising a reinforcement material layer covering a base layer formed from a first thermoplastic material. The joint comprises a fused portion of the base layer of the first and second belt ends that define a splice region. At least one coating layer of thermoplastic material overlaps the reinforcement layer of the end portions in the splice region. The coating layer is comprised of a second elastomeric material intended to melt and penetrate into interstices of the reinforcement material layer while within the mold press. Migration of the base layer material through the reinforcement material layer …

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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 10, 2003 and granted July 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 10, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 10, 2025.
  • 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 10, 2003
GrantedJuly 10, 2012
Term endedNovember 10, 2023
Patent numberCA 2448854 C
Classification (IPC)F16G3/10 +1 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedNov 10, 2003Patent grantedJuly 10, 2012Term endedNov 10, 2023

Sources & verification

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