Method of assembly of tubular metallic fences
CA 2124121 A1 · Owner: Haglund, Vernon · Inventors: Haglund, Vernon
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method of assembling mechanical system having tubular constructional elements such methods including, the furnishing of an interior work surface of a first constructional element (14) having a complemental internal structure and further, positioning a second tubular constructional element (16) so that at least one surface thereof is proximal to the complemental internal surface of the first constructional element. Positioning a working element (48 50) of a highly extended longitudinal, tool (24) reciprocatingly within the second constructional element, the working element situated proximally to the complemental internal structure of the first constructional …
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 13, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 13, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 2014.
- 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.