Kiln tool with good workability
CA 2279469 A1 · Owner: Ngk Insulators, Ltd. · Inventors: Hanzawa, Shigeru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A kiln tool uses a fiber-composite material comprising a yarn aggregate in which yarn including at least a bundle of carbon fibers and a carbon component other than carbon fibers is three-dimensionally combined and integrally formed so as not to separate from each other; and a matrix made of Si-SiC-based fiber filled between the yarn adjacent to each other within the yarn aggregate. The kiln tool has good workability and working accuracy, and excellent durability.
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 July 30, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 30, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 30, 2021.
- 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.