US2920279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unity gain amplifier
Assignee: RTX Corp
•
Filing: 1954-06-10
•
Granted: 1960-01-05
•
Expires: 1974-06-10
Abstract
No abstract record available.
Inventors
- 👤 Jack B Speller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:00
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/42; H03F3/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734944A
Cited
US2423931A
Cited
US2679556A
Cited
US2613286A
Cited
US2592193A
Cited
US2795654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-04 | 1963-07-06 | 1964-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-04 | 1967-07-06 | 1968-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-04 | 1971-07-06 | 1972-01-05 | $7700.00 | Window Closed / Lapsed |