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Expired Canadian patentCanada

Bearing surface for thin-walled tube

CA 1201002 A · Owner: Deere & Company · Inventors: Winter, David C.

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

Abstract of the Disclosure A bearing surface for a hollow link of rectangular cross section including a pair of replaceable axially aligned bushings which are flared and press-fitted into a pair of seats swaged in opposite sidewalls of the link. The outermost ends of the bushings are substantially flush with the corresponding sidewalls. The link is sandwiched between a pair of plates and a pivot pin extends through the bushings and is connected to the plates to maintain the plates closely adjacent the link to prevent sidesway. The bushings may be easily replaced and eliminate need for welded bushings or additional wear bushings.

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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 February 25, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 25, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 10, 1982
GrantedFebruary 25, 1986
Term endedFebruary 25, 2003
Patent numberCA 1201002 A
Classification (IPC)F16C35/02 +2 more

Timeline

Timeline From CIPO dates

1983198619891992199519982001Application filedJune 10, 1982Patent grantedFeb 25, 1986Term endedFeb 25, 2003

Sources & verification

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