US2471912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of electrolytic processes
Assignee: Westinghouse Electric Corp
•
Filing: 1942-12-08
•
Granted: 1949-05-31
•
Expires: 1962-12-08
Abstract
No abstract record available.
Inventors
- 👤 Glenn E Stoltz
- 👤 John R Erbe
- 👤 Ralph A Geiselman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:56
CPC Classifications
C; C25; C25D; C25D21/00; C25D21/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1277378A
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DE427436C
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US1712284A
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US1917657A
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US1785389A
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US1965399A
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US1913429A
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US2125037A
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US2325401A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-30 | 1952-11-29 | 1953-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-30 | 1956-11-29 | 1957-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-30 | 1960-11-29 | 1961-05-31 | $7700.00 | Window Closed / Lapsed |