Patent US3372342A successfully refreshed from Google Patents.
US3372342A
Expired / Lapsed
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Differential power amplifier
Assignee: Individual
•
Filing: 1963-09-26
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Granted: 1968-03-05
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Expires: 1983-09-26
Abstract
No abstract record available.
Inventors
- 👤 Martin G Reiffin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:22
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/30; H03F3/3083; H03F3/3086; H03F3/3091; H03F3/26; H03F3/3081
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A TRANSISTOR POWER AMPLIFIER COMPRISING A DIFFERENTIAL AMPLIFIER STAGE HAVING A PAIR OF OUTPUTS WITH RESPECTIVE OPPOSITELY-PHASED OUTPUT SIGNALS, A PAIR OF PUSH-PULL COMPLEMENTARY-SYMMETRY DRIVE STAGES EACH DIRECT-CURRENTCOUPLED TO A RESPECTIVE ONE OF SAID DIFFERENTIAL AMPLIFIER STAGE OUTPUTS, A PAIR OF PUSH-PULL OUTPUT STAGES EACH DIRECTCURRENT-COUPLED TO A RESPECTIVE ONE OF SAID DRIVE STAGES, AND A PAIR OF OUTPUT TERMINALS FOR CONNECTION TO A LOAD AND EACH DIRECT-CURRENT-COUPLED TO A RESPECTIVE ONE OF SAID OUTPUT STAGES.
Claim 2
Dependent Claim
76 words
A TRANSISTOR POWER AMPLIFIER COMPRISING A DIFFERENTIAL AMPLIFIER STAGE HAVING A PAIR OF OUTPUTS WITH RESPECTIVE OPPOSITELY-PHASED OUTPUT SIGNALS, A PAIR OF PUSH-PULL COMPLEMENTARY-SYMMETRY DRIVE STAGES EACH DIRECT-CURRENTCOUPLED TO A RESPECTIVE ONE OF SAID DIFFERENTIAL AMPLIFIER STAGE OUTPUTS, A PAIR OF PUSH-PULL OUTPUT STAGES EACH DIRECTCURRENT-COUPLED TO A RESPECTIVE ONE OF SAID DRIVE STAGES, AND A PAIR OF OUTPUT TERMINALS FOR CONNECTION TO A LOAD AND EACH DIRECT-CURRENT-COUPLED TO A RESPECTIVE ONE OF SAID OUTPUT STAGES.
References Cited (Backward Citations)
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Cited
US3087015A
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US3023368A
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US3018445A
Cited
US3153203A
Cited
US3154639A
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US3212019A
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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) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |