Patent US2985144A successfully refreshed from Google Patents.
US2985144A
Expired / Lapsed
US
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Servo system
Assignee: Von Roll AG
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Filing: 1956-03-26
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Granted: 1961-05-23
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Expires: 1976-03-26
Abstract
No abstract record available.
Inventors
- 👤 Trippel Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:44
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/46; F16H61/47; B; B23; B23Q; B23Q5/00; B23Q5/02; B23Q5/027; B23Q5/033; B24; B24B; B24B47/00; B24B47/02; B24B47/06; F15; F15B; F15B21/00; F15B21/08; F15B21/085; F16H61/42; F16H61/423
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |