US2584127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servo system
Assignee: Unisys Corp
•
Filing: 1946-12-05
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Granted: 1952-02-05
•
Expires: 1966-12-05
Abstract
No abstract record available.
Inventors
- 👤 William M Harcum
- 👤 John M Slater
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:02
CPC Classifications
F; F15; F15B; F15B9/00; F15B9/02; F15B9/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR625104A
Cited
US2083654A
Cited
US1879187A
Cited
US2140037A
Cited
US2210916A
Cited
FR879835A
Cited
US2398201A
Cited
US2413621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |