Adjustable reflection control device for fiber optics
CA 2107922 A1 · Owner: Liao, Hung-Huei · Inventors: Lin, Do-Chung; Liao, Hung-Huei; Tu, Yuan-Kuang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An adjustable reflection control device for fiber optics comprising a resolution adjustment knob a small, shaft, a small gear, a large gear a large shaft and a, fiber optic coupler wherein the resolution of the device is proportional to the diameter of the shaft the, larger the radius of the shaft is the smaller the rate, of change of the bending loss will be hence, the, resolution obtained can be higher. The reflection of the fiber optics can be indicated on the adjustment knob. Whenever the diameter of the shaft has to be changed, only the shaft needs to be changed and the gear remains unchanged.
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 October 7, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 7, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 7, 2015.
- 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.