Patent US3086177A successfully refreshed from Google Patents.
US3086177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
D. c. power amplifier
Assignee: North American Aviation Corp
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Filing: 1959-10-20
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Granted: 1963-04-16
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Expires: 1979-10-20
Abstract
No abstract record available.
Inventors
- 👤 Kenneth H Beers
- 👤 John L Bower
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:38
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/42; H03F3/44; H03F3/30; H03F3/3083; H03F3/3084; H03F3/34; H03F3/343
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A SINGLE ENDED LOAD, FIRST ELECTRONIC D.-C. AMPLIFYING CIRCUIT MEANS FOR PROVIDING A FIRST CURRENT FLOW THROUGH SAID LOAD IN A FIRST DIRECTION, SECOND ELECTRONIC D.-C. AMPLIFYING CIRCUIT MEANS FOR PROVIDING A SECOND CURRENT FLOW THROUGH SAID LOAD IN A DIRECTION OPPOSITE SAID FIRST DIRECTION, AND BALANCE MEANS RESPONSIVE TO THE SUM OF THE MAGNITUDE OF SAID FIRST AND SECOND CURRENT FLOWS CONNECTED BETWEEN SAID FIRST AND SECOND CIRCUIT MEANS FOR CONTROLLING ONE OF SAID CIRCUIT MEANS TO MAINTAIN SAID SUM OF SAID CURRENT FLOWS CONSTANT, SAID BALANCE MEANS INCLUDING A D.-C. REFERENCE SOURCE CONNECTED BETWEEN SAID FIRST AND SECOND CIRCUIT MEANS.
Claim 2
Dependent Claim
102 words
A SINGLE ENDED LOAD, FIRST ELECTRONIC D.-C. AMPLIFYING CIRCUIT MEANS FOR PROVIDING A FIRST CURRENT FLOW THROUGH SAID LOAD IN A FIRST DIRECTION, SECOND ELECTRONIC D.-C. AMPLIFYING CIRCUIT MEANS FOR PROVIDING A SECOND CURRENT FLOW THROUGH SAID LOAD IN A DIRECTION OPPOSITE SAID FIRST DIRECTION, AND BALANCE MEANS RESPONSIVE TO THE SUM OF THE MAGNITUDE OF SAID FIRST AND SECOND CURRENT FLOWS CONNECTED BETWEEN SAID FIRST AND SECOND CIRCUIT MEANS FOR CONTROLLING ONE OF SAID CIRCUIT MEANS TO MAINTAIN SAID SUM OF SAID CURRENT FLOWS CONSTANT, SAID BALANCE MEANS INCLUDING A D.-C. REFERENCE SOURCE CONNECTED BETWEEN SAID FIRST AND SECOND CIRCUIT MEANS.
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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |