Patent US4247351A successfully refreshed from Google Patents.
Patent US2802065A successfully refreshed from Google Patents.
US2802065A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cascade connected common base transistor amplifier using complementary transistors
Assignee: RCA Corp
•
Filing: 1953-02-13
•
Granted: 1957-08-06
•
Expires: 1973-02-13
Abstract
No abstract record available.
Inventors
- 👤 George C Sziklai
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:08
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/189; H03F3/19; H03F3/191; H03F2200/00; H03F2200/72
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2517960A
Cited
US2595496A
Cited
US2660624A
Cited
GB665867A
Cited
GB684879A
Cited
US2691074A
Cited
US2652460A
Cited
US2729708A
Cited
US2666818A
Cited
US2666819A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |