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Expired Canadian patentCanada

Fastener with increased reach-back

CA 2014597 C · Owner: Musil, Edward Charles · Inventors: Musil, Edward Charles

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 fastener and fastener assembly for coupling the ends of a conveyor belt to form a continuous belt where the preferred embodiment is a belt fastener having an upper and lower arm connected by a loop and having a, belt stop positioned to limit insertion of a conveyor belt end. The assembly utilizes a first and second set of fasteners mounted on opposite belt ends which intermesh to define a hinge passage for a hinge pin to couple the belt ends together. The reach-back of the belt ends into the belt fasteners is maximized as the belt stops are aligned with their belt loops and positioned to abut the belt end at a location where the exterior surface of a belt loop of the opposite belt …

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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 April 12, 1990 and granted February 13, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 12, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 12, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 12, 1990
GrantedFebruary 13, 2001
Term endedApril 12, 2010
Patent numberCA 2014597 C
Classification (IPC)B65G15/30 +1 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedApril 12, 1990Patent grantedFeb 13, 2001Term endedApril 12, 2010

Sources & verification

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