Shock absorbing structures
CA 2432003 A1 · Owner: E. I. Du Pont De Nemours And Company · Inventors: Edwards, Mark Stephen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A shock absorbing structure includes a body defined by a plurality of adjacent coils. The coils are resilient and flexible when exposed to a load applied substantially off-axis, or perpendicular to the axis of the body. In use the , body is positioned so that the coils deflect in directions substantially normal to the axis of the body. In this way the body acts like a shock , absorber, but unlike a coil spring the shock is absorbed by the laterally inward or outward flexing of the coils rather than the extension or , compression of the coils themselves along their axis. The body can be formed by coiling a monofilament strand which is made of a polymeric material such , as nylon. Any …
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 January 22, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 22, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 22, 2024.
- 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.