Heat lamp having visible radiation blocking coating and method of making
CA 1185311 A · Owner: General Electric Company · Inventors: Vukcevich, Milan R.; Jaffe, Mary S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coating of iron oxide on the outside of a quartz heat lamp absorbs most of the blue and green radiation and provides a deep red color while passing infrared efficiently. The coating may be applied to the completed lamp by operating it and spraying it with ferric chloride solution until the desired coating thickness of iron oxide has been built up.
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 April 9, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 9, 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.