Led lamp with direct optical coupling in axial arrangement
CA 2553533 C · Owner: Coushaine, Charles M. · Inventors: Johnson, Ralph; Tessnow, Thomas; Coushaine, Charles M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An LED light source comprises a heat sink having a body with a front surface and a rear , surface, the rear surface being provided with heat dissipaters. The front surface includes a , pocket for the receipt of components the components including at least one LEDs and , electrical circuitry therefor. A housing has a flange and a tubular projection fitted into the , pocket in a manner to fix the components in the heat sink; and an optical light guide , having at least one light pipes is positioned in the tubular projection each , of the at least , one light pipes having a light input end fixed in light gathering alignment with the at least , one LEDs in a one-to-one relationship.
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 July 26, 2006 and granted November 4, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 26, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.