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Expired Canadian patentCanada

Wheel mounting device

CA 1108669 A · Owner: Kubota, Ltd. · Inventors: Murayama, Yoshinobu

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 taper split sleeve is inserted between an axle and a wheel to fix the wheel to the axle by the taper portion of the split sleeve.

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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 September 8, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 8, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 2, 1978
GrantedSeptember 8, 1981
Term endedSeptember 8, 1998
Patent numberCA 1108669 A
Classification (IPC)B60B27/00 +2 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedAug 2, 1978Patent grantedSep 8, 1981Term endedSep 8, 1998

Sources & verification

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