Electrolytic test machine
CA 2207376 C · Owner: Tsuzaki, Atsushi · Inventors: Kiuchi, Keiji; Imanaka, Tadashi; Takeuchi, Toshihiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrolytic test machine having an electrolytic cell containing an electrolytic liquid in which a test material is adapted to be immersed. The device further includes an electrode immersed in the electrolytic liquid and a DC power source from which a current is supplied between the test material and the electrode. A catalyst purifies harmful gas generated by the electrolytic liquid and a determining device determines the replacement time of the catalyst.
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 June 9, 1997 and granted December 19, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 9, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 9, 2019.
- 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.