Advanced dynamic impact extension module
CA 2007867 C · Owner: Texas A&M University System (The) · Inventors: Ivey, Don L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An advanced dynamic impact extension module used to protect occupants of , vehicles from the adverse effects of extremely rapid deceleration of a vehicle when the vehicle impacts, an end of a concrete barrier wall is disclosed. A barrier wall is provided which has a structural, concrete base and channel portion adaptable to receive low strength reinforced concrete modules. The concrete modules are composed of three layers of crushable material of varying strengths. The first or lowest layer is composed of semi-crushable higher strength , concrete adaptable to secure reinforcement and S-beam connectors. The second layer is lower strength material and, the top layer is intermediate …
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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 January 16, 1990 and granted August 10, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 16, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 16, 2012.
- 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.