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Expired Canadian patentCanada

Ignition system for post-mixed burner

CA 1183075 A · Owner: Union Carbide Corporation · Inventors: Miller, Raymond H.; Kobayashi, Hisashi; Anderson, John E.

CIPO record

Overview

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

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Abstract From the Canadian patent

An ignition system for post-mixed gas burner which achieves reliable ignition without requiring an expensive spark source protection device or a means to, promote fuel-oxidant mixing or a large amount of, electricity, or a separate pilot light. S P E C I F I C A T I O N

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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 February 26, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 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.
FiledJuly 9, 1982
GrantedFebruary 26, 1985
Term endedFebruary 26, 2002
Patent numberCA 1183075 A
Classification (IPC)F23Q7/10 +1 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedJuly 9, 1982Patent grantedFeb 26, 1985Term endedFeb 26, 2002

Sources & verification

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