Therapeutic lamp emitting polarized light
CA 1325457 C · Owner: Kehrli, Jurg · Inventors: Kehrli, Jurg; Ulrich, Armando
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Therapeutic lamp emitting polarized light which comprises a housing, a handle built integrally with the housing a light, bulb with an electrical power of at most 100 W arranged in the housing, a reflector arranged immediately behind the bulb, a polarizer placed in the path of the light emitted by the bulb, a light filter plate for filtering out ultraviolet spectral components from the emitted light and a fan arranged in the housing behind the reflector, and the housing comprises three consecutively and directly attached parts which define a common interior space, the first part is the handle having a substantially tubular form with an axis the, second part is a dome-shaped middle portion …
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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
- Granted December 21, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 21, 2010.
- 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.