US2514632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid level control
Assignee: Cook Electric Co
•
Filing: 1947-05-22
•
Granted: 1950-07-11
•
Expires: 1967-05-22
Abstract
No abstract record available.
Inventors
- 👤 Charles H Flubacker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:41
CPC Classifications
G; G05; G05D; G05D9/00; G05D9/12; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/2366; B01F23/2368; B01F35/00; B01F35/20; B01F35/21; B01F35/211; B01F35/2112
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1806968A
Cited
US1538204A
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US1511498A
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US1838443A
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US2239481A
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US2226325A
Cited
US2199677A
Cited
US2269383A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |