Optical fiber closure
CA 2085271 C · Owner: American Telephone And Telegraph Company · Inventors: Bensel, William Henry, Iii; Cobb, Gary Simpson
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A closure (20) which may be used temporarily in the restoration of service to an optical fiber cable (50) which has been damaged includes a base (22) and a cover (24) which include mating longitudinal edge portions. The base and the cover are secured together with longitudinally extending C-clamps (97-97) which are moved slidably to engage the mating longitudinal edge portions of the base and the cover. Cables to be spliced enter the closure through openings in compliant end blocks (67,67). Modules (40,40) are disposed within the closure and hold connective devices used to make connective arrangements between optical fibers of the cables. The closure is easy to assembly is lightweight and …
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 December 14, 1992 and granted June 23, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 14, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 14, 2014.
- 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.