Patent US2918902A successfully refreshed from Google Patents.
US2918902A
Expired / Lapsed
US
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Single station variable length stroke motor control system
Assignee: Vickers Inc
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Filing: 1954-12-06
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Granted: 1959-12-29
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Expires: 1974-12-06
Abstract
No abstract record available.
Inventors
- 👤 Robinson James
- 👤 Court Kenneth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:44
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/20; F15B15/24; F15B11/00; F15B11/08; F15B11/12; F15B11/121; F15B11/123
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR999277A
Cited
US2570897A
Cited
US2634743A
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US2478790A
Cited
US2604878A
Cited
US2596471A
Cited
US2614537A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |