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Expired Canadian patentCanada

Energy absorbing exercising and training machine

CA 2020183 C · Owner: Webb, John Douglas · Inventors: Webb, John Douglas; Douglas, D. Scott

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

An energy absorbing exercising and training machine for exercising a person's ability to accelerate a portion of his body through a path of motion. The machine comprises a flywheel rotatably connected to a frame by means of a pair of journal bearings. A harness assembly is provided for connection to the portion of the person's body to be exercised. An over-running clutch is provided for interconnecting the flywheel and the harness assembly allowing the flywheel to rigidly engage relative to the harness assembly upon acceleration of the harness assembly relative to the flywheel in a first direction along the path of motion of the body portion being exercised. The clutch also allows 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

  • Filed June 29, 1990 and granted May 23, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 29, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 29, 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.
FiledJune 29, 1990
GrantedMay 23, 2000
Term endedJune 29, 2010
Patent numberCA 2020183 C
Classification (IPC)A63B23/02 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJune 29, 1990Patent grantedMay 23, 2000Term endedJune 29, 2010

Sources & verification

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