Switch with contacts which can be seen through a window
CA 2326111 A1 · Owner: Postmus, Albert Jozef Peter · Inventors: Hemmer, Aloysius Gerardus Majella; Postmus, Albert Jozef Peter; Ritsma, Roel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Switch with at least one set of interacting contacts which is accommodated in the switch housing and can be seen through a transparent window. The contacts are arranged on the free ends of current-carrying strips which run towards the window. At least one of the strips has U-shaped section adjacent to its contact, the opening of the U-shaped section facing away from the window. A plate made from magnetizable material is arranged between the limbs of the Ushaped section of at least one strip.
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 March 26, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 26, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 26, 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.