US3089097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct current amplifiers
Assignee: Consolidated Electrodynamics Corp
•
Filing: 1959-03-23
•
Granted: 1963-05-07
•
Expires: 1979-03-23
Abstract
No abstract record available.
Inventors
- 👤 Norton W Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:07
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/38; H03F3/387
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
AN AMPLIFYING CIRCUIT FOR LOW-LEVEL DIRECT CURRENT VOLTAGE SIGNALS AND WHICH DIRECT CURRENT SIGNALS INCLUDE INTERFERING SIGNALS IN COMBINATION, SAID AMPLIFIER CIRCUIT COMPRISING AMPLIFYING MEANS HAVING A SINGLE PAIR OF INPUT TERMINALS AND A SINGLE PAIR OF OUTPUT TERMINALS, ONE OF SAID OUTPUT TERMINALS IS DIRECTLY CONNECTED TO A POINT OF REFERENCE POTENTIAL AND THE VOLTAGE DEVELOPED BETWEEN THE OUTPUT TERMINALS IS ONLY DEPENDENT UPON THE DIFFERENCE IN POTENTIAL BETWEEN THE INPUT TERMINALS, INDIVIDUAL INPUT IMPEDANCE MEANS CONNECTED IN SERIES CIRCUIT RELATIONSHIP WITH EACH OF THE INPUT TERMINALS FOR SAID AMPLIFYING MEANS TO RECEIVE THE COMBINATION OF DIRECT CURRENT SIGNALS AND THE INTERFERING SIGNALS APPLIED THROUGH SAID INPUT IMPEDANCE MEANS TO SAID INPUT TERMINALS, AND SEPARATE IMPEDANCE MEANS CONNECTED TO A DIFFERENT ONE OF THE OUTPUT TERMINALS FOR THE AMPLIFYING MEANS AND IN COMMON WITH THE AMPLIFIER END OF A DIFFERENT ONE OF THE INPUT IMPEDANCE MEANS, SAID INDIVIDUAL
Claim 2
Dependent Claim
149 words
AN AMPLIFYING CIRCUIT FOR LOW-LEVEL DIRECT CURRENT VOLTAGE SIGNALS AND WHICH DIRECT CURRENT SIGNALS INCLUDE INTERFERING SIGNALS IN COMBINATION, SAID AMPLIFIER CIRCUIT COMPRISING AMPLIFYING MEANS HAVING A SINGLE PAIR OF INPUT TERMINALS AND A SINGLE PAIR OF OUTPUT TERMINALS, ONE OF SAID OUTPUT TERMINALS IS DIRECTLY CONNECTED TO A POINT OF REFERENCE POTENTIAL AND THE VOLTAGE DEVELOPED BETWEEN THE OUTPUT TERMINALS IS ONLY DEPENDENT UPON THE DIFFERENCE IN POTENTIAL BETWEEN THE INPUT TERMINALS, INDIVIDUAL INPUT IMPEDANCE MEANS CONNECTED IN SERIES CIRCUIT RELATIONSHIP WITH EACH OF THE INPUT TERMINALS FOR SAID AMPLIFYING MEANS TO RECEIVE THE COMBINATION OF DIRECT CURRENT SIGNALS AND THE INTERFERING SIGNALS APPLIED THROUGH SAID INPUT IMPEDANCE MEANS TO SAID INPUT TERMINALS, AND SEPARATE IMPEDANCE MEANS CONNECTED TO A DIFFERENT ONE OF THE OUTPUT TERMINALS FOR THE AMPLIFYING MEANS AND IN COMMON WITH THE AMPLIFIER END OF A DIFFERENT ONE OF THE INPUT IMPEDANCE MEANS, SAID INDIVIDUAL
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-06 | 1966-11-05 | 1967-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-06 | 1970-11-05 | 1971-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-06 | 1974-11-05 | 1975-05-07 | $7700.00 | Window Closed / Lapsed |