US2652458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplifier with positive and negative feedback
Assignee: Bendix Aviation Corp
•
Filing: 1949-01-13
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Granted: 1953-09-15
•
Expires: 1969-01-13
Abstract
No abstract record available.
Inventors
- 👤 Jr John Milton Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:11
CPC Classifications
H; H03; H03F; H03F1/00; H03F1/34; H03F1/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1654075A
Cited
US2245598A
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US2266168A
Cited
US2282381A
Cited
US2272235A
Cited
US2246158A
Cited
US2282383A
Cited
US2386892A
Cited
US2439245A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-14 | 1957-03-16 | 1957-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-14 | 1961-03-16 | 1961-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-14 | 1965-03-16 | 1965-09-15 | $7700.00 | Window Closed / Lapsed |