Patent EP0377269A1 successfully refreshed from Google Patents.
US2853664A
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Digital servosystem for positioning an adjustable member
Assignee: Hilger and Watts Ltd
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Filing: 1956-06-13
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Granted: 1958-09-23
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Expires: 1976-06-13
Abstract
No abstract record available.
Inventors
- 👤 Towns Victor William Henry
- 👤 Evans David Silvester
- 👤 Jones Patrick Ludlow Fleming
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:54
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/18; G05B19/19; G05B19/27; G05B19/29; G05B19/291; G05D; G05D3/00; G05D3/12; G05D3/125; G05D3/127; G05B2219/00; G05B2219/30; G05B2219/41; G05B2219/41106; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/300896
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |