Method of shear testing bituminous weatherstrips in concrete
CA 2200539 A1 · Owner: Lizotte, Martin · Inventors: Palardy, Danielle; Ballivy, Gerard; Lizotte, Martin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for shear testing a weatherstrip consists in coating the weatherstrip with a concrete matrix in two parts and applying stress to slip the two parts of the matrix onto one another. The weatherstrip is thus subjected to shear stress.
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 March 20, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 20, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 20, 2019.
- 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.