US2525147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrator and torque amplifier therefor
Assignee: Western Union Telegraph Co
•
Filing: 1946-08-14
•
Granted: 1950-10-10
•
Expires: 1966-08-14
Abstract
No abstract record available.
Inventors
- 👤 Dale H Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:01
CPC Classifications
G; G01; G01R; G01R35/00; G01R35/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1912139A
Cited
US1916356A
Cited
US2065421A
Cited
FR46165E
Cited
US2167484A
Cited
US2411147A
Cited
US2451971A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |