Pile connector
CA 2055561 A1 · Owner: St-Aubin, Bernard E. · Inventors: St-Aubin, Bernard E.; Fontaine, Henri
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A connecting system for interconnecting two elements together is described, and particularly but not, exclusively, for the connection of concrete piles. The connecting system comprises at least two identical connector plates each having an outer flat surface and at least two straight edge sections of predetermined length. A locking groove is formed along the straight edge sections and extending to the outer flat surface. The locking groove has a clamping cavity and a retention cavity extending therealong. A straight locking bar is slidingly insertable in a locking channel formed by opposed locking grooves of two of the plates when positioned in alignment with …
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 November 14, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 14, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 14, 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.