Abdomen training unit
CA 1290635 C · Owner: Greither, Peter · Inventors: Greither, Otto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
For the purpose of strengthening the abdominal muscles and the digestive tract, an abdomen training unit comprises a potshaped base element and a similarly pot-shaped actuating part which does not rotate but moves up and down in relation to the base element; the unit is secured to the abdomen by means of a body belt, a bearing surface resting upon the abdomen in such a manner that a compression springs clamped between the base element and the actuating part, is expanded when the abdomen is drawn in and is compressed when the abdomen is arched out; the compression spring bears against the base element through a control element which can be removed therefrom after the manner of a bayonet …
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
- Granted October 15, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 15, 2008.
- 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.