US2411248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical system for controlling the level of liquid in containers
Assignee: WHEELCO INSTR Co
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Filing: 1943-04-12
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Granted: 1946-11-19
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Expires: 1963-04-12
Abstract
No abstract record available.
Inventors
- 👤 Theodore A Cohen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:57
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/24; G01F23/241; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7306
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) | 1949-11-18 | 1950-05-20 | 1950-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-11-18 | 1954-05-20 | 1954-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-11-18 | 1958-05-20 | 1958-11-19 | $7700.00 | Window Closed / Lapsed |