Cross-linked polyethylene cables
CA 1266956 C · Owner: Fukunaga, Sadao · Inventors: Matsubara, Hironaga; Fukunaga, Sadao; Yamanouchi, Shosuke
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure: Cross-linked polyethylene cable, prepared by extrusioncoating a conductor with a composition composed of polyethylene, 15% or more and less than 30% by weight of ethylenevinyl acetate copolymer containing more than 25% and less than 35% by weight vinyl acetate, and an organic peroxide and then causing cross-linking, has excellent long service life characteristics particularly remarkable at elevated 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 March 27, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 27, 2007.
- 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.