US3042875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
D.c.-a.c. transistor amplifier
Assignee: Lockheed Martin Corp
•
Filing: 1960-01-29
•
Granted: 1962-07-03
•
Expires: 1980-01-29
Abstract
No abstract record available.
Inventors
- 👤 John W Higginbotham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:47
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/30; H03F3/3083; H03F3/3086; H03F3/3088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2860193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |