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US3647666A Expired / Lapsed US ⏱️ 0.0 years remaining

Measuring electrode for measuring of ions in solutions

Assignee: Gebr MOLLER
•
Filing: 1970-06-10
•
Granted: 1972-03-07
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Expires: 1990-06-10
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Abstract

Abstract A MEASURING ELECTRODE FOR MEASURING IONS IN SOLUTION COMPRISES AN ELECTRICALLY INSULATING CYLINDRICAL CASING WHICH CONTAINS A GLASS OR PLASTICS CYLINDER HAVING OPEN TOP AND BOTTOM ENDS AND A TRANSVERSE PARTITION WALL, AND A DETACHABLE ELECTRODE BASE CARRYING THE ION SELECTIVE MEMBER AND CLOSING THE BOTTOM END OF SAID CYLINDER TO FORM A HOLLOW SPACE WITHIN THE CYLINDER BETWEEN SAID PARTITION WALL AND THE ELECTRODE BASE ADAPTED TO CONTAIN THE REFERENCE SOLUTION. AN INTERNAL REFERENCE ELECTRODE IS IMMERSED IN THE SOLUTION AND SEALINGLY LEADS THROUGH SAID TRANSVERSE PARTITION WALL AND EXTENDS TO THE TOP OF THE CASING WHERE IT IS CONNECTED TO JUNCTION MEANS. MEANS ARE PROVIDED TO ENABLE AN EASY EXCHANGE OF THE ELECTRODE BASE OF THE REFERENCE SOLUTION AND OF THE ION-SELECTIVE MATERIAL.

Inventors

  • 👤 Wilhelm Simon
  • 👤 Willi Moller
  • 👤 Rene Dohner

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 04:57
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/333

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-03-07 1975-09-06 1976-03-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-03-07 1979-09-06 1980-03-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-03-07 1983-09-06 1984-03-07 $7700.00 Window Closed / Lapsed

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