Reinforcing fibers and composite materials reinforced with said fibers
CA 1302176 C · Owner: Ube Industries, Ltd. · Inventors: Shibuya, Masaki; Ishikawa, Toshihiro; Yamamura, Takemi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A reinforcing inorganic fiber composed of an internal layer and a surface layer, wherein said internal layer is composed of an inorganic material containing silicon, either titanium or zirconium carbon and oxygen which is, (i) an amorphous material consisting substantially of Si, M, C and O, or, (ii) an aggregate consisting substantially of ultrafine crystalline particles with a particle diameter of not more than 500 .ANG. of .beta.-SiC, MC, a solid solution of .beta.-SiC and MC and MC1-x, wherein M represents titanium or zirconium, and x is a number represented by 0<x<1, or, (iii) a mixture of the amorphous material (i) and the aggregate (ii), and, said surface layer is composed of an …
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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
- Granted June 2, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 2, 2009.
- 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.