Sheet metal rocker arm and manufacturing method thereof
CA 2444562 A1 · Owner: Nsk Ltd. · Inventors: Shimada, Shinobu; Kadokawa, Satoshi; Takeo, Noriyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of manufacturing a metal plate rocker arm comprising the steps of , forming a raw plate having a specified outline and through-holes by punching out and forming one sheet of metal material forming a pair of side wall parts , generally parallel with each other and a connection part for connecting the lateral one end edges of these both side wall parts to each other by applying a bending operation to the raw plate by pressing forming at least a pair of , circular holes in these both side wall parts at the positions matching with each other, forming an engaging part in the state recessed more than the other part of the connection part on one surface of the connection part by …
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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 April 19, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 19, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 19, 2023.
- 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.