Underwater optical fiber cable
CA 1332302 C · Owner: Philen, Dan Lassiter · Inventors: Hardwick, Nathan Everette, Iii; Blee, John James; Philen, Dan Lassiter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An underwater optical fiber cable which is substantially free of hydrogen generation includes a core portion which includes an optical transmission medium and which may comprise a terrestrial cable and a sheath system which may be an oversheath for the terrestrial cable. An outer portion of the sheath system includes a plurality of longitudinally extending strength members each being made of a metal having a relatively low chemical or electrochemical reactivity. Covering individually each strength member is a plastic material such as polyethylene.
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 11, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 11, 2011.
- 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.