Apparatus for measuring the elongation of sample strips
CA 2065569 A1 · Owner: Chave, Yves · Inventors: Serra-Tosio, Jean-Marie; Chave, Yves
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for measuring the respective elongations of several sample strips (13), comprises: a vertical frame (51) provided with a fixed upper gripping jaw (27) and a mobile lower gripping jaw (15) to maintain each of the strips (13), the lower gripping jaw (15) stretches the strip by gravity effect; and an electronic displacement sensor (33, 35) associated to each lower gripping jaw (15). Each gripping jaw comprises a sole and a plate articulated on the sole. A magnet (11) is mounted in the sole, flush with a contact surface of the sole, for urging the plate against the contact surface by magnetic attraction.
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 April 8, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 8, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 8, 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.