US2595496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cascade-connected semiconductor amplifier
Assignee: RCA Corp
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Filing: 1949-01-22
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Granted: 1952-05-06
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Expires: 1969-01-22
Abstract
No abstract record available.
Inventors
- 👤 Jr William M Webster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:06
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/45; H03F3/45071; D; D06; D06P; D06P3/00; D06P3/34; D06P3/40; H03F3/189; H03F3/19; H03F3/20; H03F3/21; H03F3/34; H03F3/343; H10; H10D; H10D99/00
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) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |