US2515867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical means for operating fluid pressure indicating gauges and signaling devices
Assignee: Individual
•
Filing: 1946-12-14
•
Granted: 1950-07-18
•
Expires: 1966-12-14
Abstract
No abstract record available.
Inventors
- 👤 Fuller Reginald Cyril
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:32
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US805505A
Cited
US1681314A
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US1581957A
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US1528627A
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US1695295A
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US1788678A
Cited
US1796919A
Cited
FR705669A
Cited
US2030523A
Cited
US2163518A
Cited
GB471422A
Cited
US2347695A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-17 | 1954-01-16 | 1954-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-17 | 1958-01-16 | 1958-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-17 | 1962-01-16 | 1962-07-18 | $7700.00 | Window Closed / Lapsed |