US3411067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transformer connected amplifier circuits including means for minimizing unbalanced transformer currents
Assignee: Bunker Ramo Corp
•
Filing: 1966-03-14
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Granted: 1968-11-12
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Expires: 1986-03-14
Abstract
No abstract record available.
Inventors
- 👤 David R Rodal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:33
CPC Classifications
H; H03; H03F; H03F9/00; H03F9/06; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/53; H02M7/537; H02M7/538; H02M7/53803; H02M7/53806; H02M7/539
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3027508A
Cited
US3078380A
Cited
US3196336A
Cited
US3248637A
Cited
US3101439A
Cited
US3237082A
Cited
US3327199A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |