Method for controlling the contact of optical fibers
CA 2116934 C · Owner: Marshall, James D. · Inventors: Harman, Murray R.; Marshall, James D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and apparatus for placing two optical fiber ends or one optical, fiber end and another object in contact with one another is provided. The method, involves moving one of an optical fiber and an object toward one another so that, they make contact with one another and apply a loading force upon one another. A load sensing device detects the loading force and provides a signal indicative of, the load sensed. The invention is particularly useful for placing two optical fiber, ends in contact with one another so that predetermined force applied to the optical fiber ends.
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 March 3, 1994 and granted August 1, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 3, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 3, 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.