Bidirectional selectively actuatable lighter
CA 2072015 C · Owner: Mcdonough, James M. · Inventors: Mcdonough, James M.; Snell, Thomas G.; Fairbanks, Floyd B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A selectively actuatable child resistant lighter device is disclosed which includes a body (12) defining reservoir (15) for containing a combustible gaseous medium (9) such as butane, and having a valve arranged to be selectively actuated between a normally closed position and an open position which permits the exit of the gaseous medium. Such child resistant lighter can selectively produce sparks at a location proximate to the gaseous medium exit to ignite the gaseous medium. A safety mechanism normally prevents actuation of the valve to the open position. Such child resistant lighter device embodies a resiliently releasable safety latch which prevents the actuation of the valve actuator …
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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
- Filed December 21, 1990 and granted September 21, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 21, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 2012.
- 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.