Expired Canadian patentCanada
Arm and wrist exercise apparatus
CA 1306267 C · Owner: Roehlk, Ruth P. · Inventors: Roehlk, Ruth P.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An arm and wrist exercise apparatus (10) comprising a pair of handle units (11) and a pair of intertwined spring units (12); wherein, each of the spring units (12) is operatively engaged to the pair of handle units (11).
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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 August 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 11, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 13, 1989
GrantedAugust 11, 1992
Term endedAugust 11, 2009
Patent numberCA 1306267 C
Classification (IPC)A63B23/12 +2 more
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.