Synthetic mica products
CA 1213508 A · Owner: Corning Glass Works · Inventors: Olszewski, Anthony R.; Hoda, Syed N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There are disclosed synthetic mica papers substrates produced by laminating such papers and use, of the substrates in printed circuit assemblies. The mica paper is composed primarily of overlapping ion-, exchanged platelets of a synthetic lithium and/or, sodium, water-swelling mica and is impregnated with an, organic resin.
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 November 4, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 4, 2003.
- 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.