US3598713A
Expired / Lapsed
US
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Potassium ion sensitive electrode
Assignee: Corning Glass Works
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Filing: 1969-06-03
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Granted: 1971-08-10
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Expires: 1989-06-03
Abstract
Abstract AN ELECTRODE FOR MEASURING THE CONCENTRATION OF POTASSIUM IONS IN AN AQUEOUS SOLUTION WHEREIN THE SENSING PORTION IS A LIQUID ORGANIC PHASE CONTAINING A POTASSIUM SUBSTITUTED TETRAPHENYLBORATE DISSOLVED IN A SUITABLE ORGANIC SOLVENT.
Inventors
- 👤 George Baum
- 👤 Warren M Wise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:04
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/333; G01N27/3335
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |