Shock absorber and method for producing the same, and filler for the same
CA 2279422 A1 · Owner: Ein Kohsan Co. Ltd. · Inventors: Hoshimura, Hideji; Nishibori, Sadao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An object of the invention is to provide a shock absorber which can reduce damage to the member to collide therewith. The invention provides a shock absorber, comprising a cushion structure of three-dimensional spring construction which , has a, large void provided by a random curl or loop formed by hot extruding a thermoplastic, resin to form a continuous strip and curling or looping the strip in a molten state to bring, adjoining strip sections into interlocking contact with each other. In the invention, the, cushion structure may be obtained by stacking a plurality of cushion structure members, each having high cushion performance and buckling resistance and a certain thickness, …
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 August 2, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 2, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 2, 2021.
- 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.