Fuel transporting tube
CA 2289889 C · Owner: Tokai Rubber Industries, Ltd. · Inventors: Ito, Hiroaki; Iio, Shinji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fuel transporting tube including an inner layer (2) which contacts a fuel being transported and which is formed of a polybutylene naphthalate resin, an outer layer (4) which is provided radially outwardly of the inner layer and which is formed of a polyamide resin or a polyolefin resin and an, intermediate layer (6) which is provided between the inner layer and the outer layer and which is formed of a resin to adhere the inner and outer layers to each other.
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
- Filed November 16, 1999 and granted September 10, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 16, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 16, 2021.
- 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.