US2823862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical proportional control apparatus employing a frequency discriminator
Assignee: Honeywell Inc
•
Filing: 1952-11-28
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Granted: 1958-02-18
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Expires: 1972-11-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Warren Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:11
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/013
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2156534A
Cited
US2411247A
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US2316317A
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US2413913A
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US2564937A
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US2561182A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-17 | 1961-08-19 | 1962-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-17 | 1965-08-19 | 1966-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-17 | 1969-08-19 | 1970-02-18 | $7700.00 | Window Closed / Lapsed |