US3716460A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for determining corrosion rate and meter therefor
Assignee: Veolia WTS USA Inc
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Filing: 1971-06-21
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Granted: 1973-02-13
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Expires: 1991-06-21
Abstract
Abstract A THREE ELECTRODE CORROSION RATE METER INCLUDING A POTENTIOSTAT FOR PROVIDING A CORROSION RATE CURRENT WHEREIN A CAPACITOR IS USED TO MEASURE, STORE AND PROGRAM TO THE POTENTIOSTAT THE POTENTIAL DIFFERENCE BETWEEN THE TEST AND REFERENCE ELECTRODES.
Inventors
- 👤 A Weisstuch
- 👤 C Schell
- 👤 P Dryden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:40
CPC Classifications
G; G01; G01N; G01N17/00; G01N17/02
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) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |