Optical assembly
CA 2334304 A1 · Owner: Meyers, Mark M. · Inventors: O'Brien, Stephen; Meyers, Mark M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention, in accordance with one aspect is an optical assembly (20) , including a substrate (21 ), a light emitting device (22) mounted over a major surface of the substrate and, having a back face (24) at least one channel (28) formed in the substrate near the back face of the, light emitting device and at least one photodetector (13) optically coupled to the light emitted, from the back face. The channel includes at least one surface (32) adapted to receive a portion of, the back face light and reflect it away from the photodetector so that the photodetector receives, primarily direct light from the back face (FIG. 2).
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 February 6, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 6, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 6, 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.