Apparatus for varying the optical characteristics of an optical fiber by stretching the fiber
CA 2334837 A1 · Owner: Mala, Mohiuddin · Inventors: Mala, Mohiuddin; Philipson, Joshua; Lapinski, Feliks
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus for modifying the optical characteristics of an optical fiber by controlled, stretching of a length of the fiber comprising a first fiber holder fixedly carried by a base and, capable of firmly holding a first portion of the optical fiber a lever part , attached to the base at a fulcrum, and second fiber holder movably connected to the lever part and capable of firmly holding, a second portion of the fiber so that an intermediate length of fiber may be held taut between said, first and second holding means. An electromagnetic circuit moves the lever part between first and, second predetermined positions so that the intermediate length of fiber is stretched as the lever part, …
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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 February 8, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 8, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 8, 2023.
- 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.