Thick film track material
CA 1291513 C · Owner: Atterbury, Alan R. · Inventors: Balderson, Simon N.; Atterbury, Alan R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrically resistive track (2) suitable for use as a heating element consists of a thick film including a base metal constituent and a glass constituent. The thick film has in the temperature range of from 20°C to 600°C a temperature coefficient of resistance (TCR) less than 0.0050 per degree C. Suitable metal constituents include tungsten molybdenum, a, mixture of nickel and tungsten and a mixture of nickel and chromium.
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 29, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 29, 2008.
- 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.