Delay switch with delay unit
CA 2233240 C · Owner: Chuzawa, Takaaki · Inventors: Saito, Jun; Chuzawa, Takaaki; Kondo, Hideya
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In the setting operation conducted by the handle 90 which is an operating section, an upper portion of the portion 26a' to be pushed of the card 26 is pushed by the end portion of the cam 90b and the card 26 is moved. In accordance with the movement of the card 26, the suction cup block 23 is elastically deformed and the, suction cup 23b is sucked and held by the body 24 to be sucked. The body 24 to be sucked is composed of a porous body and air flows, from the ventilation hale 29 into a space formed between the suction cup 23b and the body 24 to be sucked, via the body 24 to be sucked. The card 26 is biased ahead by the return spring 27. When the releasing operation is conducted by the …
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 27, 1998 and granted January 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 27, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2020.
- 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.