Sit-up exercise apparatus
CA 1083626 A · Owner: Bernstein, Morton J. · Inventors: Bernstein, Morton J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A sit-up exercise apparatus adapted to be utilized in conjunction with a door having spaced apart vertically extending surfaces and a bottom intermediate the surfaces. The apparatus comprises a frame having oppositely disposed sides and adapted to be removably secured to the door. The frame includes an elongated base adapted to extend below the bottom of the door, and front and rear members each one of, the members having an oppositely disposed lower end connected to the base and an upper end with spaced apart inner and outer walls intermediate the ends. The inner walls adapted to extend in overlapping relation with the surfaces of the door. The inner walls oppositely disposed with respect …
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 August 12, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 12, 1997.
- 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.