Transmission line switching apparatus and method therefor
CA 2123159 C · Owner: Saito, Kazuhito · Inventors: Sato, Makoto; Kobayashi, Hideo; Saito, Kazuhito
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A transmission line switching apparatus comprises an optical fiber connecting board for holding a plurality of first optical fibers, an optical fiber arranging board arranged apart from the connecting board with a predetermined spacing between them in the horizontal direction, for holding a plurality of second optical fibers, and a robot for handling the second fibers. Each second optical fiber extends to the connecting board through the arranging board, and the distal end of the second optical fiber is detachably attached to the connecting board so as to be selectively connected to one of the first optical fibers. When the distal end of the second optical fiber is attached to the …
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 May 9, 1994 and granted September 26, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 9, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 9, 2016.
- 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.