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Patent US2534802A successfully refreshed from Google Patents.
US2534802A
Expired / Lapsed
US
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Liquid level gauge
Assignee: WEST ROAD CO Ltd
•
Filing: 1946-04-08
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Granted: 1950-12-19
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Expires: 1966-04-08
Abstract
No abstract record available.
Inventors
- 👤 Smith Stanley James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:30
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/26; G01F23/263; G01F23/266
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1118935A
Cited
US1665397A
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US1592901A
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US1660405A
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US1856202A
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GB441576A
Cited
US2150386A
Cited
US2280678A
Cited
US2219939A
Cited
US2377275A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |