A fire prevention apparatus
CA 2226807 A1 · Owner: Forde, Francis Gerard · Inventors: Lucas, Victor; Forde, Francis Gerard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided a fire prevention apparatus (1) which has a liquid discharge means (5) in the form of a nozzle in a flue (3). The liquid discharge means is fed through a conduit (7) from a controller (6) with a liquid for dissolving those flammable combustion products which are not burnt normally but form a flammable condensate on the surface of the flue pipe. A temperature sensing means (10) is mounted in the flue pipe (3) and connected to the controller (6) to provide for correct operation of the apparatus (1). The apparatus (1) may be manually or automatically operated.
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 January 12, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 12, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 12, 2020.
- 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.