Patent US3296458A successfully refreshed from Google Patents.
US3296458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peak indicator
Assignee: AT&T Inc
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Filing: 1963-11-15
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Granted: 1967-01-03
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Expires: 1983-11-15
Abstract
No abstract record available.
Inventors
- 👤 Renato D Fracassi
- 👤 Eric V Madsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:56
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/153; H03K5/1532
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN A PEAK DETECTING CIRCUIT, A CAPACITOR, AN IMPEDANCE CONNECTED ACROSS SAID CAPACITOR FOR PROVIDING A CURRENT DISCHARGING PATH, OUTPUT MEANS CONNECTED TO SAID IMPEDANCE, MEANS CONNECTED TO SAID CAPACITOR FOR PROVIDING A LOW IMPEDANCE TO CHARGING CURRENT AND A HIGH IMPEDANCE TO DISCHARGING CURRENT, VOLTAGE PULSE INPUT MEANS CONNECTED TO SAID CAPACITOR FOR APPLYING A VOLTAGE PULSE ACROSS SAID CAPACITOR AND SAID LOW IMPEDANCE MEANS, AND CURRENT OPERATED TIMING MEANS INCLUDING SAID LOW IMPEDANCE MEANS RESPONSIVE TO SAID CHARGING CURRENT THROUGH SAID LOW IMPEDANCE MEANS AND HAVING A DELAY INTERVAL EXCEEDING THE DURATION OF SAID VOLTAGE PULSE FOR DISCHARGING SAID CAPACITOR AT THE TERMINATION OF SAID DELAY INTERVAL, SAID CURRENT OPERATED MEANS BEING CONNECTED IN SERIES WITH SAID CAPACITOR.
Claim 2
Dependent Claim
120 words
IN A PEAK DETECTING CIRCUIT, A CAPACITOR, AN IMPEDANCE CONNECTED ACROSS SAID CAPACITOR FOR PROVIDING A CURRENT DISCHARGING PATH, OUTPUT MEANS CONNECTED TO SAID IMPEDANCE, MEANS CONNECTED TO SAID CAPACITOR FOR PROVIDING A LOW IMPEDANCE TO CHARGING CURRENT AND A HIGH IMPEDANCE TO DISCHARGING CURRENT, VOLTAGE PULSE INPUT MEANS CONNECTED TO SAID CAPACITOR FOR APPLYING A VOLTAGE PULSE ACROSS SAID CAPACITOR AND SAID LOW IMPEDANCE MEANS, AND CURRENT OPERATED TIMING MEANS INCLUDING SAID LOW IMPEDANCE MEANS RESPONSIVE TO SAID CHARGING CURRENT THROUGH SAID LOW IMPEDANCE MEANS AND HAVING A DELAY INTERVAL EXCEEDING THE DURATION OF SAID VOLTAGE PULSE FOR DISCHARGING SAID CAPACITOR AT THE TERMINATION OF SAID DELAY INTERVAL, SAID CURRENT OPERATED MEANS BEING CONNECTED IN SERIES WITH SAID CAPACITOR.
References Cited (Backward Citations)
US2961537A
Cited
US3067344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |