Push button support structure for push switch
CA 2273283 C · Owner: Takano, Tsunesuke · Inventors: Sato, Takeshi; Takano, Tsunesuke
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a push button switch and support structure therefor comprising a housing a push button switch secured to the housing and having an actuator thereon a push button for engaging the actuator to operate the switch first engagement means on the underside of the push button and second engagement means on the housing mating with the first engagement means one of the engagement means being of polygonal cross-section and the other of the engagement means being of circular cross-section whereby on mating one within the other, a plurality of linear contacts are effected between the first and second engagement means.
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 31, 1999 and granted July 8, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 31, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 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.