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Expired Canadian patentCanada

Joint assembly

CA 1284429 C · Owner: Nippon Sheet Glass Co. Ltd. · Inventors: Fuchigami, Yasuhiro

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 joint assembly interconnecting first and second rotatable shafts includes an engaging member mounted on a shaft portion of the first rotatable shaft a tubular assem-, bly including a first tubular member in which the shaft portion is coaxially inserted and which has an engaged member for engaging the engaging member, and a second tubular member coupled to the second rotatable shaft and an urging, assembly disposed in the first tubular member for normally urging the first tubular member and the first rotatable shaft axially away from each other to keep the engaging member and the engaged member in engagement with each other. The engaged member has a central through hole through which the …

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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 May 28, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 28, 2008.
  • 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 23, 1988
GrantedMay 28, 1991
Term endedMay 28, 2008
Patent numberCA 1284429 C
Classification (IPC)F16D3/16 +2 more

Timeline

Timeline From CIPO dates

1989199119931995199719992001200320052007Application filedJune 23, 1988Patent grantedMay 28, 1991Term endedMay 28, 2008

Sources & verification

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