US3099802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
D.c. coupled amplifier using complementary transistors
Assignee: Westinghouse Electric Corp
•
Filing: 1959-12-07
•
Granted: 1963-07-30
•
Expires: 1979-12-07
Abstract
No abstract record available.
Inventors
- 👤 Mattern John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:17
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/34; H03F3/343
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2714702A
Cited
BE523250A
Cited
US3008091A
Cited
US2966632A
Cited
US2828450A
Cited
US3007102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-29 | 1967-01-28 | 1967-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-29 | 1971-01-28 | 1971-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-29 | 1975-01-28 | 1975-07-30 | $7700.00 | Window Closed / Lapsed |