US3072845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noise factor measurement system
Assignee: Avco Corp
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Filing: 1960-05-09
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Granted: 1963-01-08
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Expires: 1980-05-09
Abstract
No abstract record available.
Inventors
- 👤 Bruck George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:44
CPC Classifications
G; G01; G01R; G01R29/00; G01R29/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A SYSTEM FOR MEASURING THE NOISE FIGURE OF ELECTRICAL CIRCUITY, SAID ELECTRICAL CIRCUITRY INCLUDING AN INPUT CIRCUIT AND AN OUTPUT CIRCUIT, A SOURCE OF AUXILIARY NOISE SIGNAL, MEANS FOR APPLYING SAID AUXILIARY NOISE SIGNAL TO SAID INPUT CIRCUIT ONLY FOR TIME INTERVALS OF DURATIONS T1 SEPARATED BY TIME INTERVALS OF DURATIONS T2, A BRIDGE CIRCUIT INCLUDING A FIRST ARM AND A SECOND ARM, SAID FIRST AND SECOND ARMS EACH INCLUDING AN ELECTRICAL INTEGRATED POWER-RESPONSIVE RESISTANCE, MEANS FOR COUPLING SAID FIRST ARM TO SAID OUTPUT CIRCUIT ONLY DURING SAID TIMES T1,
Claim 2
Independent Claim
90 words
A SYSTEM FOR MEASURING THE NOISE FIGURE OF ELECTRICAL CIRCUITY, SAID ELECTRICAL CIRCUITRY INCLUDING AN INPUT CIRCUIT AND AN OUTPUT CIRCUIT, A SOURCE OF AUXILIARY NOISE SIGNAL, MEANS FOR APPLYING SAID AUXILIARY NOISE SIGNAL TO SAID INPUT CIRCUIT ONLY FOR TIME INTERVALS OF DURATIONS T1 SEPARATED BY TIME INTERVALS OF DURATIONS T2, A BRIDGE CIRCUIT INCLUDING A FIRST ARM AND A SECOND ARM, SAID FIRST AND SECOND ARMS EACH INCLUDING AN ELECTRICAL INTEGRATED POWER-RESPONSIVE RESISTANCE, MEANS FOR COUPLING SAID FIRST ARM TO SAID OUTPUT CIRCUIT ONLY DURING SAID TIMES T1,
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |