Composite material and its manufacturing method
CA 2125548 A1 · Owner: Yanagawa, Chuichi · Inventors: Yanagawa, Chuichi; Tsukagoshi, Eigoro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Composite material 19 comprising outer member 17 having ring form section and inner member 18 mounted into said outer member so as to form a unitary construction wherein inner surface 24 of said outer member 17 and outer surface 22 of said inner member 18 are at least partially opposed to each other through a gap .delta. and wherein said members 17,18 are joined together by means of anaerobic adhesives filling said gap .delta. . - 2 4 -
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 June 9, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 9, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 9, 2016.
- 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.