Tension buster
CA 2044716 C · Owner: Ritchey, Mervyn Glen · Inventors: Ritchey, Mervyn Glen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The Tension Buster is a self-help device where the user fully regulates it's usage. For functional use the device is attached (to a wall, doorjamb, archway etc.) or rested (leaned) against an object (wall, chair back floor etc.). The device is utilized in a manner where the user will lean and/or push with varying degrees of force against it. The Tension Buster device is used to: relax tense and/or spastic tissues (eg. muscles, tendons, ligaments (fascia etc.) pressure point myofascial trigger points manipulate and, adjust fixed and/or stiff joint complexes (primarily of the spine), etc. The choice of probe used, from the variety of probes available, will determine the physiological affects. …
Read the whole patent
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 14, 1991 and granted December 27, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 14, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 14, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.