A gas lighter
CA 2233357 A1 · Owner: Rogelet, Thierry · Inventors: Rogelet, Thierry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This lighter (I) of the type comprising a reservoir for containing liquefied petroleum gas, a valve (3) mounted on the reservoir and permitting the gas to leave the same, a valve opening mechanism (4 5), as well as an ignition , system comprising a flint (6) co-operating with a spark wheel (7) rotationally operated by at least one circular thumb wheel (10) mounted co-axially with the spark wheel. This lighter is characterised in that each thumb wheel (10) is independent of the spark wheel (7) and can pivot around its axis independently of the spark wheel, and in that rotational frictional engaging means are provided between the spark wheel and the at least one thumb wheel (10) when a …
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
- Filed July 11, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 11, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 11, 2019.
- 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.