A light hardening device and a light source suitable for use in a light hardening device
CA 2387665 A1 · Owner: Stahl, Thomas · Inventors: Stahl, Thomas; Plank, Wolfgang; Rohner, Gottfried
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A light hardening device is provided and includes a light source having a plurality of LEDs supplied by an electrical energy source and a, cooling device arranged upstream of the light source and operable to cool the light hardening device. The LED arrangement is disposed on a rear surface of a cooling body and the light hardening device has a connection in the manner of a halogen glow lamp. Also a light source is provided, having a plurality of LEDs a cooling body on which the LEDs are, mounted and a connector element and an overall exterior geometry each of which corresponds to the respective connector element and overall exterior geometry of a conventional reflecting halogen glow lamp …
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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 May 24, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 24, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 24, 2024.
- 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.