Patent US3133160A successfully refreshed from Google Patents.
US3133160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination bias oscillator, mixer and recording amplifier
Assignee: Code-A-Phone Electronics Inc
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Filing: 1960-02-25
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Granted: 1964-05-12
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Expires: 1980-02-25
Abstract
No abstract record available.
Inventors
- 👤 Kenneth A Catto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:59
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/38; H03F3/387; G; G11; G11B; G11B5/00; G11B5/02; G11B5/027; G11B5/03; H03B; H03B5/00; H03B5/08; H03B5/12; H03B5/1203; H03B5/1231; H03B5/1237; H03B5/124; H03B5/1296
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN COMBINATION, A TRANSFORMER HAVING A PRIMARY COIL CONNECTED AT ONE END TO THE COLLECTOR OF A TRANSISTOR AND AT THE OPPOSITE END TO THE TRANSISTOR BASE THROUGH A BLOCKING CAPACITANCE, A CAPACITANCE SHUNTING THE PRIMARY COIL, MEANS CONNECTING THE PRIMARYCOIL INTERMEDIATE ITS ENDS TO A SOURCE OF POTENTIAL, RESISTANCE MEANS INTERCONNECTING THE TRANSISTOR BASE AND COLLECTOR, RESISTANCE MEANS CONNECTING THE TRANSISTOR BASE TO A SOURCE OF POTENTIAL, MEANS CONNECTING THE TRANSISTOR EMITTER TO A SOURCE OF POTENTIAL, THE SOURCE OF POTENTIAL CONNECTED TO THE PRIMARY COIL BEING DIFFERENT IN MAGNITUDE THAN THE POTENTIAL APPLIED TO THE TRANSISTOR BASE AND EMITTER, AND MEANS CONNECTING THE TRANSISTOR BASE TO A
Claim 2
Dependent Claim
109 words
IN COMBINATION, A TRANSFORMER HAVING A PRIMARY COIL CONNECTED AT ONE END TO THE COLLECTOR OF A TRANSISTOR AND AT THE OPPOSITE END TO THE TRANSISTOR BASE THROUGH A BLOCKING CAPACITANCE, A CAPACITANCE SHUNTING THE PRIMARY COIL, MEANS CONNECTING THE PRIMARYCOIL INTERMEDIATE ITS ENDS TO A SOURCE OF POTENTIAL, RESISTANCE MEANS INTERCONNECTING THE TRANSISTOR BASE AND COLLECTOR, RESISTANCE MEANS CONNECTING THE TRANSISTOR BASE TO A SOURCE OF POTENTIAL, MEANS CONNECTING THE TRANSISTOR EMITTER TO A SOURCE OF POTENTIAL, THE SOURCE OF POTENTIAL CONNECTED TO THE PRIMARY COIL BEING DIFFERENT IN MAGNITUDE THAN THE POTENTIAL APPLIED TO THE TRANSISTOR BASE AND EMITTER, AND MEANS CONNECTING THE TRANSISTOR BASE TO A
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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) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |