Device for fast and uniform heating of a substrate with infrared radiation
CA 2394426 C · Owner: Ducret, Rene Pierre · Inventors: Laporte, Franck; Ducret, Rene Pierre; Semmache, Bachir
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a heating device comprising infrared radiation lamps (24, 26) for providing a fast heat treatment of a substrate (12) inside a reaction chamber (14) with transparent window (34). The infrared lamps (24 26) are distributed on two superimposed stages (A B) extending on a common , side of the substrate (12) the lamps (24) of the lower stage (A) being arranged perpendicular relative to the lamps (26) of the upper stage (B). Means adjusting power input for each unit of lamps provide more heat on the edges than at the centre of the substrate (12). A reflector (36) is configured as a distribution grid (38) designed to reflect the infrared radiation to control the …
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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 October 12, 2001 and granted September 27, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 12, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 12, 2023.
- 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.