US3133210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage controlled delay circuit
Assignee: GTE Sylvania Inc
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Filing: 1962-05-31
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Granted: 1964-05-12
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Expires: 1982-05-31
Abstract
No abstract record available.
Inventors
- 👤 Ralph W Leurgans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:30
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/313; H03K3/315
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
126 words
A VOLTAGE CONTROLLED DELAY CIRCUIT COMPRISING FIRST AND SECOND TRANSISTORS EACH HAVING A BASE, AN EMITTER AND A COLLECTOR, A SOURCE OF VARIABLE VOLTAGE, A TUNNEL DIODE, A CHARGING CAPACITOR, MEANS FOR CONNECTING ONE SIDE OF THE TUNNEL DIODE TO THE EMITTER OF THE FIRST TRANSISTOR AND TO THE BASE OF THE SECOND TRANSISTOR, MEANS FOR CONNECTING ONE SIDE OF THE TUNNEL DIODE TO TO THE EMITTER OF THE SECOND TRANSISTOR, MEANS FOR CONNECTING ONE SIDE OF THE CAPACITOR TO THE BASE OF THE FIRST TRANSISTOR, A DISCHARGE RESISTOR CONNECTING OPPOSITE SIDES OF SAID CAPACITOR, MEANS FOR CONNECTING SAID VOLTAGE SOURCE TO SAID OTHER SIDE OF SAID CAPACITOR AND THE COLLECTOR OF SAID FIRST TRANSISTOR, AND MEANS FOR APPLYING A TRIGGER PULSE ACROSS SAID TUNNEL DIODE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |