Expired Canadian patentCanada
Method of and apparatus for measuring ionic electric conductance of objects
CA 1021026 A · Owner: Nauchno-Issledovatelsky Ordena Trudovogo Krasnogo Znameni Institut Zhivo Tnovodstva Lesostepi I Polesya Ukrainskoi Ssr Juzhnogo Otdelenia Vsesoju Znoi Akademii Selskokhozyaistvennykh Nauk Imeni V. I. Lenina · Inventors: Ostashko, Fedor I.; Mirny, Igor N.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
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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
- Granted November 15, 1977. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 15, 1994.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedNovember 15, 1977
Term endedNovember 15, 1994
Patent numberCA 1021026 A
Classification (IPC)G01N27/06 +2 more
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.