Convertible structural element
CA 2070284 C · Owner: Alain Burri S.A. · Inventors: Bringolf, Serge Alain
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A structural element is disclosed which is substantially composed of a linked chain and of a flexible connection which can be a chain of identical links and which, can be assembled together as required to form a rigid beam. The linked chain comprises opposing support points, the first support point of one link of row n of the, chain cooperating with the second support point of a link of row n-1 to contain, while, the element is being rendered rigid hooking elements integral with , theflexible connection and which, in the preferred embodiment of the invention are the , pins of, the second chain. The structural element can be assembled or disassembled using, a special device.
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 4, 1991 and granted September 17, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 4, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 4, 2013.
- 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.