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US3435324A
Expired / Lapsed
US
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Driven inverter dead-time circuit
Assignee: AT&T Inc
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Filing: 1967-11-01
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Granted: 1969-03-25
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Expires: 1987-11-01
Abstract
No abstract record available.
Inventors
- 👤 John D Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:42
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/53; H02M7/537; H02M7/5387; H02M7/53871
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2809303A
Cited
US3119058A
Cited
US3067378A
Cited
US3246226A
Cited
US3315146A
Cited
US3260963A
Cited
US3328669A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |