US2616037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-frequency mixer circuit
Assignee: RCA Corp
•
Filing: 1950-04-28
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Granted: 1952-10-28
•
Expires: 1970-04-28
Abstract
No abstract record available.
Inventors
- 👤 Benjamin F Wheeler
- 👤 Howard R Mathwich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:44
CPC Classifications
H; H01; H01P; H01P7/00; H01P7/04; H03; H03D; H03D9/00; H03D9/06; H03D9/0608; H03D9/0625
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2416565A
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US2455657A
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US2433387A
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US2408420A
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US2435541A
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US2412805A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |