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Expired Canadian patentCanada

Planet gear frame assembly

CA 2024680 C · Owner: Geiger, Robert E. · Inventors: Kimberlin, Robert R.; Speck, Frank; Allis, Wayne

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

The assembly is so configured as to use common parts, whereby another assembly having a, different gear ratio, can be formed using the selfsame common parts. Only different gears and, a different frame is required to form the alternative assembly having the other gear ratio. Accordingly stocking of discrete parts for the, differing assemblies is greatly reduced.

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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 September 5, 1990 and granted November 7, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 5, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 5, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 5, 1990
GrantedNovember 7, 2000
Term endedSeptember 5, 2010
Patent numberCA 2024680 C
Classification (IPC)F16H1/28 +1 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedSep 5, 1990Patent grantedNov 7, 2000Term endedSep 5, 2010

Sources & verification

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