Improvements in fastening devices
CA 2414601 A1 · Owner: Titus International Plc · Inventors: Vallance, William Ernest Taylor
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A device for fastening panels to tubular frames comprises a dowel element (10) and a sleeve element (11). An expander region (15) of the dowel element comprising a plain cylindrical section (16) and a conically tapering section (17), is designed to react with a complementarily-tapering inner bore section (19) of the sleeve element when the dowel element is moved axially relative to the sleeve element to cause outward movement of an expandable section (20) of the sleeve element. The sleeve element has a flange (21) which acts as a depth stop and an undercut portion (22) so that a shoulder (23) of the expandable section lodges behind the hole in the tubular member when the fastener is set.
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 December 16, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 16, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 16, 2024.
- 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.