Patent US2514570A successfully refreshed from Google Patents.
US2514570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid level gauge
Assignee: NATHAN Manufacturing CO
•
Filing: 1949-12-31
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Granted: 1950-07-11
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Expires: 1969-12-31
Abstract
No abstract record available.
Inventors
- 👤 Carl F Erikson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:42
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US545727A
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US2484329A
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US646022A
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US754034A
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US767486A
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US1288377A
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GB197538A
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US1926945A
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US2289374A
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US2246464A
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US2303154A
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 |