Folding ramp
CA 1307626 C · Owner: Adaway, David · Inventors: O'Connell, John; Adaway, David
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A collapsible ramp comprising an attachment frame a, foldable support structure mounted to the attachment frame by pivotable hinges, and a telescoping deck structure of interconnected, essentially rectangular plates. The foldable support structure has longitudinal support members with foldable joints intermediate along the lengths of the members, and these members are pivotally connected to the hinge means. The ramp can be formed into an extended state in which the longitudinal support members are extended outwardly from the attachment frame and the rectangular plates of the telescoping deck structure are extended and supported on the support members. Alternatively the ramp, can be formed …
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 September 22, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 22, 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.
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.