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US2460503A
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Apparatus for measuring liquid level or specific gravity
Assignee: Schneider Electric Systems USA Inc
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Filing: 1945-02-26
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Granted: 1949-02-01
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Expires: 1965-02-26
Abstract
No abstract record available.
Inventors
- 👤 Wilfred H Howe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:38
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/0038; G01N; G01N9/00; G01N9/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190510992A
Cited
US1829489A
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US2248322A
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US2329541A
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US2351101A
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US2360886A
Cited
US2359245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-01 | 1952-08-02 | 1953-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-01 | 1956-08-02 | 1957-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-01 | 1960-08-02 | 1961-02-01 | $7700.00 | Window Closed / Lapsed |