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Expired Canadian patentCanada

Spindle hub spacer interconnection

CA 2111126 C · Owner: Myszka, Kevin · Inventors: Myszka, 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 generally cylindrical hub spacer having inwardly and outwardly extending protrusions is used to rotationally interconnect a deck pulley to a spindle assembly in a lawn mower.

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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 10, 1993 and granted March 25, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 10, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 10, 2015.
  • 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 10, 1993
GrantedMarch 25, 1997
Term endedDecember 10, 2013
Patent numberCA 2111126 C
Classification (IPC)F16D1/08 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedDec 10, 1993Patent grantedMarch 25, 1997Term endedDec 10, 2013

Sources & verification

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