Patent US2753449A successfully refreshed from Google Patents.
US2753449A
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Superheterodyne mixer with negative feedback for stabilizing conversion gain
Assignee: Individual
•
Filing: 1952-01-30
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Granted: 1956-07-03
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Expires: 1972-01-30
Abstract
No abstract record available.
Inventors
- 👤 Gail E Boggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:41
CPC Classifications
H; H03; H03D; H03D7/00; H03D7/06; H03D7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2107395A
Cited
US2062004A
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US2093565A
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US2111765A
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US2248785A
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US2503780A
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US2582725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-03 | 1960-01-02 | 1960-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-03 | 1964-01-02 | 1964-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-03 | 1968-01-02 | 1968-07-03 | $7700.00 | Window Closed / Lapsed |