US3582474A
Expired / Lapsed
US
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Method and apparatus for measuring potassium ion activity
Assignee: Corning Glass Works
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Filing: 1968-09-18
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Granted: 1971-06-01
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Expires: 1988-09-18
Abstract
Abstract AN ELECTROCHEMICAL APPARATUS FOR SELECTIVELY DETERMINING THE ACTIVITY OF POTASSIUM IONS IN AN AQUEOUS SOLUTION.
Inventors
- 👤 Michael L Hair
- 👤 Inci Altug
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:44
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/36
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) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |