Ph electrode
CA 1187138 A · Owner: Sumitomo Electric Industries, Ltd. · Inventors: Ohkawa, Shinichi; Hiramoto, Junichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A PH electrode is provided with an ISFET for generating a potential difference according to the PH value of an electrolyte to be measured, and includes cell for driving the ISFET so, that the PH electrode can be used, as it is with a conventional, potential difference type PH meter.
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
- Granted May 14, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 14, 2002.
- 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.