Moment-resistant structure, sustainer, and method of construction
CA 2301059 C · Owner: Aschheim, Mark Amos · Inventors: Aschheim, Mark Amos
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a moment-resistant structure sustainer (3), and method of construction for deformably resisting episodic loads and may be utilized in new construction and in rehabilitation of existing construction. Deformation capacity is enhanced by the use of multiple dissipative zones which function in a manner similar to plastic hinges and which are detemined by one or more voids (6a-6f) that are located in the web (4) of a sustainer (3). The voids are of a size, shape, and configuration to assure that the dissipative zones deform inelastically when a critical stress is reached thereby developing the action of a structural fuse preventing the occurrence , of …
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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 February 3, 1998 and granted June 25, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 3, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 3, 2020.
- 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.