US2554811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Functional potentiometer
Assignee: Reeves Instrument Corp
•
Filing: 1948-02-03
•
Granted: 1951-05-29
•
Expires: 1968-02-03
Abstract
No abstract record available.
Inventors
- 👤 Bromberg Eleazer
- 👤 Lawrence I Freedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:26
CPC Classifications
H; H01; H01C; H01C10/00; H01C10/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB135523A
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DE503574C
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US1364967A
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FR585416A
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CH117873A
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US1858364A
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US1940102A
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US1971238A
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US2319322A
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US2468344A
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US2417311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |