US3200261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blocking oscillator
Assignee: Verizon Laboratories Inc
•
Filing: 1961-11-21
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Granted: 1965-08-10
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Expires: 1981-11-21
Abstract
No abstract record available.
Inventors
- 👤 Fischman Martin
- 👤 Geller William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:52
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A BLOCKING OSCILLATOR FOR GENERATING VOLTAGE PULSES COMPRISING (A) FIRST AND SECOND TRANSISTORS, EACH OF SAID TRANSISTORS HAVING FIRST, SECOND, AND THIRD ELECTRODES, (B) A SERIES RESONANT CIRCUIT HAVING ARESONANT FREQUENCY SERIES RESONANT CIRCUIT HAVING A RESONANT FREQUENCY WHICH DETERMINES THE DURATION OF SAID VOLTAGE PULSE, (C) A TRANSFORMER HAVING AT LEAST FIRST, SECOND, AND THIRD WINDINGS, THE FIRST WINDING OF SAID TRANSFORMER BEING COUPLED BETWEEN THE FIRST AND THIRD ELECTRODES OF SAID FIRST TRANSISTOR, THE SECOND WINDING OF SAID TRANSFORMER BEING COUPLED IN SERIES WITH SAID RESONANT CIRCUIT BETWEEN THE FIRST AND SECOND ELECTRODES OF SAID FIRST TRANSISTOR, AND SAID THIRD WINDING BEING COUPLED BETWEEN THE FIRST AND SECOND ELECTRODES OF SAID SECOND TRANSISTOR, AND (D) MEANS COUPLING THE FIRST AND THIRD ELECTRODES OF SAID SECOND TRANSISTOR ACROSS SAID CAPACITOR.
Claim 2
Dependent Claim
131 words
A BLOCKING OSCILLATOR FOR GENERATING VOLTAGE PULSES COMPRISING (A) FIRST AND SECOND TRANSISTORS, EACH OF SAID TRANSISTORS HAVING FIRST, SECOND, AND THIRD ELECTRODES, (B) A SERIES RESONANT CIRCUIT HAVING ARESONANT FREQUENCY SERIES RESONANT CIRCUIT HAVING A RESONANT FREQUENCY WHICH DETERMINES THE DURATION OF SAID VOLTAGE PULSE, (C) A TRANSFORMER HAVING AT LEAST FIRST, SECOND, AND THIRD WINDINGS, THE FIRST WINDING OF SAID TRANSFORMER BEING COUPLED BETWEEN THE FIRST AND THIRD ELECTRODES OF SAID FIRST TRANSISTOR, THE SECOND WINDING OF SAID TRANSFORMER BEING COUPLED IN SERIES WITH SAID RESONANT CIRCUIT BETWEEN THE FIRST AND SECOND ELECTRODES OF SAID FIRST TRANSISTOR, AND SAID THIRD WINDING BEING COUPLED BETWEEN THE FIRST AND SECOND ELECTRODES OF SAID SECOND TRANSISTOR, AND (D) MEANS COUPLING THE FIRST AND THIRD ELECTRODES OF SAID SECOND TRANSISTOR ACROSS SAID CAPACITOR.
References Cited (Backward Citations)
US2220712A
Cited
US2605424A
Cited
US2949547A
Cited
US3013219A
Cited
US3038128A
Cited
US3158751A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |