Patent Yard Sign in
Expired Canadian patentCanada

Glass enamel coating compositions

CA 1333621 C · Owner: Novartis Ag · Inventors: Stotka, David M.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

In glass enamel coating compositions containing a glass frit system, a metal oxide pigment and a vehicle therefor, the improvement comprising the presence therein of iron metal powder to provide anti-stick color mainten-, ance and glass adhesion properties; the resulting coatings being particularly effective for application to glass sheets which are subsequently subjected to high temperature forming procedures.

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 December 20, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 20, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 27, 1989
GrantedDecember 20, 1994
Term endedDecember 20, 2011
Patent numberCA 1333621 C
Classification (IPC)C03C8/18

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedJan 27, 1989Patent grantedDec 20, 1994Term endedDec 20, 2011

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.