Resin-coated steel pipe
CA 2487386 A1 · Owner: Yazaki Industrial Chemical Co. Ltd. · Inventors: Yoshino, Shuji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A resin-coated steel pipe (1) excellent in mechanical strength such as sliding property, wherein a double coating structure is formed in a manner that it extends in the pipe axis direction and has substantially the same cross section, the structure comprising a thin steel pipe (2) and attached to the , outer surface thereof as a coating layer with an adhesive an alloy resin (3) , being a mixture of a styrenic resin and a crystalline engineering plastic and further, formed on the outer surface of the alloy resin (3) in a thickness required for exhibiting its mechanical strength such as sliding property the , crystalline engineering plastic (4). The resin-coated steel pipe exhibits …
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 May 22, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 22, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 22, 2025.
- 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.