Lever switch
CA 2016682 C · Owner: Daiichi Denso Buhin Co. Ltd. · Inventors: Takano, Tsunesuke
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lever switch comprising: a base of insulating characteristics formed by plastic forming; hinge bosses confronting each other and provided for the base; and operation lever pivotably fastened in such a manner that the hinge bosses are elastically inserted into holes (recessed portions) formed in hinge members disposed confronting the hinge bosses; a thin bridge member connecting the lower portions of a hole (recessed portion) formed in the lower portion of the operation lever; a movable contact formed in substantially U-shape, pivotably fastened to the bridge member and equipped with a pair of contacts confronting the hole (recessed portion) formed in the operation lever; and first and …
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 May 14, 1990 and granted April 5, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 14, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 14, 2012.
- 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.