Patent US3361952A successfully refreshed from Google Patents.
US3361952A
Expired / Lapsed
US
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Driven inverter circuit
Assignee: AT&T Inc
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Filing: 1966-04-11
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Granted: 1968-01-02
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Expires: 1986-04-11
Abstract
No abstract record available.
Inventors
- 👤 John D Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:00
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/42; H02M7/44; H02M7/48; H02M7/53; H02M7/537; H02M7/538; H02M7/5381
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
128 words
A POWER INVERTER CIRCUIT COMPRISING A SOURCE OF INPUT POTENTIAL, A PAIR OF TRANSISTORS EACH HAVING INPUT, OUTPUT AND COMMON ELECTRODES, SIGNAL MEANS COUPLED TO SAID INPUT AND COMMON ELECTRODES TO RENDER EACH TRANSISTOR ALTERNATELY CONDUCTIVE, A LOAD COUPLED TO SAID SOURCE OF INPUT POTENTIAL THROUGH THE OUTPUT ELECTRODES OF EACH ALTENATELY CONDUCTING TRANSISTOR, A CHARGE STORAGE DIODE INDIVIDUALLY CONNECTED ACROSS THE INPUT AND COMMON ELECTRODE OF EACH TRANSISTOR AND POLED TO RENDER SAID TRANSISTOR NONCONDUCTIVE WHEN SAID DIODE IS PASSING CURRENT IN ITS FORWARD DIRECTION, AND SWITCHING MEANS COUPLED TO SAID SIGNAL MEANS FOR SIMULTANEOUSLY DIVERTING ENERGY FROM SAID TRANSISTOR INPUT ELECTRODES AND CONNECTING SAID DIODES IN PARALLEL TO EFFECT AN ENERGY TRANSFER FROM A PREVIOUSLY CONDUCTING DIODE TO THE INPUT-COMMON ELECTRODES OF A PREVIOUSLY CONDUCTING TRANSISTOR.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |