Cap hinge
CA 2081722 C · Owner: Graham, Wallace S. · Inventors: Graham, Wallace S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A single element hinge device which serues as the connective between a single column support and a table top assembly. Secured in the upright position the present invention provides, a rigid mounting for a table top assembly which may be released and tilted to a more vertical position. Stamped from a sheet of metal, this invention may be comprised of four adjoining rectangular plates including a top side, a front side and an underside, made up of two rectangular plates disposed at near right angles to one another, and contained between two tabs extending down at ninety degrees from either side of the top plate each having, the means for mounting the body on an axle.
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 October 29, 1992 and granted April 6, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 29, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 2014.
- 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.