Flexible hose with composite core
CA 2178010 C · Owner: Mulvey, Philip A. · Inventors: Mulvey, Philip A.; Crisman, Chuck; Chudd, Russell
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flexible hose comprising a composite polymeric core with a degradation-resistant liner and a thermoplastic elastomeric liner coating the core preferably being surrounded by a protective sheath. The degradation- resistant liner is optionally a polyolefin or fluorine-containing polyolefin andcan have a convoluted inside surface. The composite core can optionally include a vapor barrier and leak indicator and a tracer can be provided to indicate twisting of the sheath.
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 June 3, 1996 and granted August 10, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 3, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 3, 2018.
- 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.