Device for speedily mounting objects on tubes and bars
CA 2113677 C · Owner: Liao, Gordon · Inventors: Liao, Gordon
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A speedy fixing device for tubes and bars of various shapes and sizes, having two elongate upright parallel teeth plates and an engaging base. The teeth plates are fixed firmly on an object which is to be affixed to the tube or bar, and have a plurality of longitudinal teeth in two vertical parallel slots of the engaging base. The engaging base has an inverted V-shaped bottom surface to contact an upper surface of a tube or a bar. The engaging base slides inward gradually to compress tightly the tube or the bar placed under the base and between the two plates. An elastic cushion is used to inhibit slipping.
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 January 18, 1994 and granted December 22, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 18, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 18, 2016.
- 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.