Fence post
CA 2054503 C · Owner: Dirickx · Inventors: Gaultier, Jean Michel; Charbaut, Gerard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improved fence post, ABSTRACT, Improved metal fence post characterised in that, it comprises a framework (10) with a cross-section in the shape of an isosceles trapezium, a T-shaped foot (20) with a central web (21) connected to the large base (11) of the framework, virtually perpendicularly at its centre, and with two lateral flanges (22) inclined in a V-shape with respect to each other and pointing towards this large base (11), and in that equidistant grooves (23) are cut into each flange (22) so as to form tongues (24), and in that each tongue (24) terminates in a hook (25) which is open towards the web (21) and has a rim (26) virtually parallel to the large base (11) in order to define …
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 October 30, 1991 and granted April 26, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 30, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 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.