Fire detector
CA 2489933 C · Owner: Schlegel, Max · Inventors: Hess, Kurt; Schlegel, Max
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The fire detector comprises an insertable detector assembly which includes a sensor , arrangement (2), an electronic evaluation system and a housing (3) which surrounds the , sensor arrangement (2) and has openings to provide access by air and when , applicable, smoke to the sensor arrangement (2). The detector is of modular construction and is , configured to accommodate detection modules having sensors for different fire parameters, all detection modules being compatible with a single housing (3). The , detection module may be configured for optical thermal or optical-thermal , fire detection and/or for detecting combustion gases. The sensor arrangement (2) and the above-mentioned …
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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 June 13, 2003 and granted May 29, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 13, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 13, 2025.
- 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.