US3531392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arrangement for measuring the current intensity at the single electrodes of electrolytic cells
Assignee: Knapsack AG
•
Filing: 1966-09-08
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Granted: 1970-09-29
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Expires: 1986-09-08
Abstract
No abstract record available.
Inventors
- 👤 Kurt Schmeiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:12
CPC Classifications
G; G01; G01R; G01R15/00; G01R15/04; C; C25; C25B; C25B15/00; C25B15/02; C25B15/023; C25B15/04; C25B15/06; C25C; C25C7/00; C25C7/06; G01R1/00; G01R1/20; G01R1/203; G01R1/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2606869A
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US3052618A
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US3361654A
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US3219570A
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US3245898A
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US3288693A
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DE1193683B
Cited
US3329592A
Cited
US3317413A
Cited
US3396095A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |