Patent US3274399A successfully refreshed from Google Patents.
US3274399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trigger circuit
Assignee: RCA Corp
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Filing: 1963-10-25
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Granted: 1966-09-20
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Expires: 1983-10-25
Abstract
No abstract record available.
Inventors
- 👤 Alfredo S Sheng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:34
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/313; H03K3/315
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
126 words
THE COMBINATION COMPRISING: A FIRST AMPLIFYING DEVICE AND A SECOND AMPLIFYING DEVICE EACH HAVING CONTROL, OUTPUT AND COMMON ELECTRODES; MEANS FOR APPLYING OPERATING POTENTIALS BETWEEN THE OUTPUT AND COMMON ELECTRODES OF EACH SAID AMPLIFYING DEVICE; A CAPACITOR AND AN ELEMENT OF RESISTANCE SERIALLY CONNECTED BETWEEN THE OUTPUT ELECTRODE OF THE AMPLIFYING DEVICE AND THE CONTROL ELECTRODE OF THE SECOND AMPLIFYING DEVICE; A NEGATIVE RESISTANCE DIODE CONNECTED BETWEEN THE CONTROL AND COMMON ELECTRODES OF SAID SECOND AMPLIFYING DEVICE; BIAS MEANS CONNECTED AT THE CONTROL ELECTRODE OF SAID SECOND AMPLIFYING DEVICE; FEEDBACK MEANS CONNECTED BETWEEN THE OUTPUT ELECTRODE OF THE SECOND AMPLIFYING DEVICE AND THE CONTROL ELECTRODE OF THE FIRST AMPLIFYING DEVICE; AND MEANS FOR APPLYING AN INPUT SIGNAL AT THE CONTROL ELECTRODE OF SAID FIRST AMPLIFYING DEVICE.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |