Clamping spring collar with improved safety
CA 2116364 A1 · Owner: Etablissements Caillau · Inventors: Calmettes, Lionel; Detable, Pascal
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A spring clamping collar constituted by a rolled-up metal strip (1) with the end portions (1a-1b) of said strip each being of a width that is substantially equal to half the width of the strip, said portions being disposed beside each other and being provided with tabs that extend radially outwardly from the collar thereby, forming abutments for engaging a pliers-like tool. Each tab extends over substantially the entire width of the strip and possesses, on its side remote from its connection to the corresponding end portion of the strip an extension (2a-3a) which extends over the other end portion of the strip and is directed away from the tab carried by said other end portion.
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 February 24, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 24, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 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.