N x 2n optical fiber switch
CA 2252189 C · Owner: Takahashi, Mitsuo · Inventors: Takahashi, Mitsuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An optical fiber switch for switching N x 2N (N ~ 1) circuits is capable of mechanically switching a plurality of pairs of optical fiber circuits at the same time. The optical fiber switch moves an N (N ~ 1) number of movable optical fibers at the same time by a drive member which is guided by a slit of alignment members and reciprocated at right angles or in the X direction with respect to an optical axis The optical axes of the movable optical fibers are accurately aligned with the optical axes of first or second fixed optical fibers by a mechanism which presses the N (N ~ 1) number of the movable optical fibers against alignment V grooves at the same time by utilizing the flexure stress …
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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 29, 1998 and granted August 5, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 29, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 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.