Patent US2853900A successfully refreshed from Google Patents.
US2853900A
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Automatic precision control device
Assignee: HILLYER INSTR Co
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Filing: 1953-12-17
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Granted: 1958-09-30
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Expires: 1973-12-17
Abstract
No abstract record available.
Inventors
- 👤 Hillyer Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:18
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/0405; Y; Y10; Y10T; Y10T74/00; Y10T74/13; Y10T74/131; Y10T74/14; Y10T74/1418; Y10T74/1424; Y10T74/1447
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2339976A
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US2311142A
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US2411513A
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US2427493A
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US2628539A
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US2467422A
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US2672067A
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US2710934A
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US2694804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-29 | 1962-03-31 | 1962-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-29 | 1966-03-31 | 1966-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-29 | 1970-03-31 | 1970-09-30 | $7700.00 | Window Closed / Lapsed |