Damper and vibration damping structure using the same
CA 2770427 C · Owner: Oiles Corporation · Inventors: Mochimaru, Masami; Kawaguchi, Sumio; Miyazaki, Mitsuru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A damper includes a hollow outer elongated body formed of a cylindrical member; a , hollow inner elongated body similarly formed of a cylindrical member; a viscous body , disposed in a cylindrical gap between an inner surface of the elongated body and an outer , surface of the elongated body in such a manner as to be in contact with the inner surface , and the outer surface of these elongated bodies respectively; rectangular , attaching plate members which are respectively secured to a closed-side other end portion in , an axial , direction, of the elongated body having one end portion on an open end side and to a , closed-side one end portion of the elongated body respectively; and a …
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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 7, 2003 and granted December 19, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 7, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 7, 2025.
- 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.