High weeping strength polymer-glass ribbon composite laminates for fluid containment
CA 2296074 A1 · Owner: Monette, Liza · Inventors: Chiu, Allen S.; Anderson, Michael P.; Mueller, Russell R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is a high weeping strength polymer-glass ribbon composite laminate for fluid containment. The laminate includes a reinforced composite tubular body which comprises a tubular polymeric matrix including a thermosetting polymer with tensile elongation to break less than 25 % and a glass ribbon reinforcement embedded within said tubular polymeric matrix. The reinforcing ribbon may be helically wound at an angle between 0-90 with respect to the pipe axis, or wound at an angle of about 90~ with respect to the pipe axis.
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 July 22, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 22, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 22, 2019.
- 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.