Optical cable and optical cable line
CA 1262416 C · Owner: Miyazaki, Hiroshi · Inventors: Miyazaki, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An optical cable is formed by trunks connected end to end fibres at the connected ends of the trunks being provided with two branches, independently connected to branches of fibres in the other trunk, so that one of the branch connections can be interrupted without interrupting communication through the cable. This enables fibres or trunks to be replaced or branched whilst the cable is in use. The connections between branches may be by fusion bonding, or by the use of optical fibre jumpers extending between branch connectors.
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
- Granted October 24, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 24, 2006.
- 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.