US3400223A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple input control system with single amplifier
Assignee: Rck Inc
•
Filing: 1964-12-10
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Granted: 1968-09-03
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Expires: 1984-12-10
Abstract
No abstract record available.
Inventors
- 👤 Donald G Pedrotti
- 👤 David F Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:18
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/36; G05B11/42; G05B11/32; G05D; G05D23/00; G05D23/19; G05D23/1906; G05D23/1927; G05D23/193; G05D23/1932; G05D23/1934; G05D23/20; G05D23/22; G05D23/24
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) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |