Plastic optical cable
CA 1291888 C · Owner: Ohbe, Yoshitaka · Inventors: Fujita, Katsuramaru; Furuta, Motonobu; Tatsukami, Yoshiharu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a plastic optical cable comprising a core, a cladding and a protective layer made of an ester type thermoplastic elastomer. The resulting cable has a low degree of thermal shrinkage and a low attenuation of light transmission, even at high temperatures.
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 November 12, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 12, 2008.
- 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.