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Expired Canadian patentCanada

Pivot connection for a grapple

CA 2257056 C · Owner: Hodgins, J. Kevin · Inventors: Hodgins, J. Kevin

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 pivot connection for a grapple having a link member with a journal-bore at one end a yoke member with spaced-apart parallel arms receiving the one end of the link member therebetween bores in the arms and a pivot pin mounted through the bores in the arms in the yoke member and the journal-bore in the link member to pivotally connect the two members together. Tapered counter-bored brake surfaces are provided in each side of the link member concentric with the journal-bore. Tapered brake cores are slidably mounted on the pivot pin and located in the counter-bores facing each other each core located between an arm of the yoke and the link member in such a way that the break cores are not …

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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 December 22, 1998 and granted November 25, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 22, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 22, 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.
FiledDecember 22, 1998
GrantedNovember 25, 2003
Term endedDecember 22, 2018
Patent numberCA 2257056 C
Classification (IPC)F16C11/12 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedDec 22, 1998Patent grantedNov 25, 2003Term endedDec 22, 2018

Sources & verification

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