Optical fiber switch with a deformable structure
CA 2212271 A1 · Owner: Harman, Murray R. · Inventors: Harman, Murray R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A moving fiber optical switch has a deformable pivotable element having a flexible portion and two ends at which opposite optical fiber ends are mounted to align each other in a controlled manner. The number of parts subject to wear resulting in an impairment of the accuracy of the switch has been reduced compared to earlier designs. The deformable element forms an open ring or a frame the ends of which are laterally displaceable relative to each other. The ends are restrained or partly immobilized such that during a pivotal movement of the ring or frame, the alignment of the ends and particularly the associated end portions of opposite optical fibers, is controllably changed.
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 September 9, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 9, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 9, 2019.
- 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.