Stable high resistance, transparent coating
CA 1322736 C · Owner: Kittler, Wilfred C. · Inventors: Kittler, Wilfred C.; Ritchie, Ian Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A stable high resistant transparent coating is formed by choosing an undoped wide band gap semiconducting oxide and, by forming a film from elements constituting the undoped oxide and from a dopant which is chosen so as to form a doped wide band gap semiconducting oxide the doped oxide, having an electrical resistance greater than the undoped oxide, the electrical resistance of the doped oxide being such that it equals an optimum value when the coating composition is inherently stable.
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 October 5, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 5, 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.
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.