Method for producing elastomeric optical fiber
CA 1248313 A · Owner: Sumitomo Electric Industries, Ltd. · Inventors: Uemiya, Takafumi; Niwa, Shin-Ichiro; Shibata, Yutaka
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract:, The invention provides a method for producing an elastomeric optical fiber of low light attenuation comprising a core made of an elastomer having rubber-like elasticity and a cladding surrounding the core. The optical fiber is produced by a method comprising causing a stream of a liquid polymer for the core to descend from a nozzle while the polymer is cross-linked, and simultaneously with or after the formation of the core, providing a cladding around the core.
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 January 10, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 10, 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.