Expired Canadian patentCanada
Infusible preceramic polymers via plasma treatment
CA 1314516 C · Owner: Dow Corning Corporation · Inventors: Lipowitz, Jonathan
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
What is disclosed is a method of rendering shaped preceramic polymers infusible prior to the pyrolysis of such polymers by treating the shaped preceramic polymer with a plasma.
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
- Granted March 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 16, 2010.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 28, 1987
GrantedMarch 16, 1993
Term endedMarch 16, 2010
Patent numberCA 1314516 C
Classification (IPC)D01F9/10 +2 more
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.