US2532379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for maintaining reserve supply in liquid supply tanks
Assignee: Individual
•
Filing: 1948-07-02
•
Granted: 1950-12-05
•
Expires: 1968-07-02
Abstract
No abstract record available.
Inventors
- 👤 Eugene D Trom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:48
CPC Classifications
B; B60; B60K; B60K15/00; B60K15/03; B60K15/06; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7297; Y10T137/73; Y10T137/7313; Y10T137/8593; Y10T137/86348
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1329209A
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US1362150A
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US902096A
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US966672A
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US1409310A
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US1605619A
Cited
US1744193A
Cited
US1888615A
Cited
US1904793A
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US2149820A
Cited
US2167961A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |