Optical coupling system using gel resin and the mounting structure
CA 2229570 A1 · Owner: Goto, Akio · Inventors: Goto, Akio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is an optical coupling system which has a LD element and an optical fiber to be optically coupled with the LD element where the optical coupling system is filled with optically transparent gel resin with a refractive index higher than that of the air and lower than that of the optical fiber. Further the surface, of the gel resin may be covered with moisture-blocking resin.
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 12, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 12, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 12, 2020.
- 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.