Electromagnetic relay
CA 2101143 C · Owner: Hirawata, Seiichi · Inventors: Hirata, Hiroshi; Hirawata, Seiichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electromagnetic relay having a plate spring provided with a movable contact and an L-shaped bent portion at the middle portion of the plate spring, an, armature fixed on one side of the plate spring with respect to the bent portion, and, having a first offset portion spaced from the plate spring between a first fixed, portion of the plate spring and the bent portion and a blocking portion for changing, the supporting position of the plate spring in accordance with the deflection of the, plate spring, and a yoke fixed on the other side of the plate spring with respect to, the bent portion, and having a second offset portion spaced from the plate spring, between a second fixed …
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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 July 22, 1993 and granted October 17, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 22, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 22, 2015.
- 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.