Corrosion-resistant conductive glass
CA 1191679 A · Owner: International Business Machines Corporation · Inventors: Shafer, Merrill W.; Rohr, Robert L.; Kendall, Arthur H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Alkali resistant high melting point glass containing about 15% - 20% zirconium dioxide forms an optimum composite structure with 1 to 6 parts glass frit to 1 to 2 parts ruthenium dioxide when fired at 800 to 1000°C.
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 August 13, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 13, 2002.
- 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.