Opto-mechanical valve and valve array for fiber-optic communication
CA 2377377 A1 · Owner: Chertkow, Igal Roberto · Inventors: Chertkow, Igal Roberto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A microelectromechanical system (MEMS) optical switch is introduced which includes a mirror (1) constructed on a substrate (2). The mirror (1) is movable parallel to the surface of the substrate (2) and either allows an input ray incident at an oblique angle preferably 45~, to the mirror surface to pass undisturbed through a transparent part (49) of a substrate (2) or reflects the ray to an alternate output. Three embodiments of the switch are shown. The first includes a variation on a comb-drive designed to produce larger forces than usual by using an envelope-like electrode into which the mirror (1) is drawn. Larger forces can be obtained by designing the electrode edges to have …
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 10, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 10, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 10, 2022.
- 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.