Expired Canadian patentCanada
Non-glare coated glass
CA 1237347 A · Owner: Ppg Industries, Inc. · Inventors: Breininger, Josephine S.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for treating an alkali silicate non-glare coating with an acid in order to prevent alkali-induced haze is disclosed.
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 May 31, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 31, 2005.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 24, 1986
GrantedMay 31, 1988
Term endedMay 31, 2005
Patent numberCA 1237347 A
Classification (IPC)C03C17/22
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.