Moldable ceramic composition and process for fine diameter ceramic fibers
CA 2016457 C · Owner: Renlund, Gary Mats · Inventors: Johnson, Curtis Alan; Renlund, Gary Mats
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A thermoplastic ceramic molding composition comprised of about 40 to 70 volume percent of a binder consisting essentially of an organic acid containing from 12 to 26 carbon atoms per molecule and a polyisobutylene polymer having a molecular weight between about: 8,700 and 135,000 and about 30 to 60 volume percent of a ceramic powder is disclosed. The molding composition can be thermoplastically extruded into elongate ceramic bodies that can be uniformly elongated many times the original length of the ceramic body to form, for example, very fine diameter fibers or filaments suitable for sintering into a polycrystalline ceramic fiber or filament having a very fine diameter.
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 10, 1990 and granted December 18, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 10, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 10, 2012.
- 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.