Ceramic metal compound
CA 2021645 A1 · Owner: Schultze, Werner · Inventors: Deisenroth, Friedrich-Ulf; Schultze, Werner; Schindler, Stefan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A ceramic metal compound comprising a porous ceramic infiltrated with metal, the ceramic comprising at least five layers, the thickness of each layer lying between about 10 and about 150 microns and the average pore radius of said ceramic lying between about 100 and about 1,000 nm the ceramic having, an open end porosity within the range of about 5 and about 14% and an overall porosity within the range of about 5 and about 30% and said metal filling the pore volume with the exception of a residual pore volume within the range of about 0.1 to about 10%, based on the initial porosity.
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 20, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 20, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 20, 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.