Modular fiber-reinforced composite structural member
CA 2244934 A1 · Owner: The Regent Of The University Of California · Inventors: Hegemier, Gilbert A.; Seible, Freider
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A concrete-filled fiber-reinforced structural member (100) is provided comprising a concrete core (105) encased in a lightweight fiber-reinforced composite shell (103) formed by winding polymer impregnated high-strength filaments (107, 109). The fibers are arranged for optimal strength and may be tailored for a specific requirement. The shell structure (103) is durable chemically inert, and adaptable to a variety of civil engineering applications. A plurality of composite structural members (100) can be connected via various connectors (301, 402 409, 411) to form complex space , frame structures (601 701) such as industrial support structures bridges, buildings and the like.
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 February 5, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 5, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 5, 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.