US3150328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor oscillator having two regenerative feedback paths
Assignee: Hammond Organ Co
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Filing: 1960-10-24
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Granted: 1964-09-22
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Expires: 1980-10-24
Abstract
No abstract record available.
Inventors
- 👤 Ray B Schrecongost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:12
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/08; H03B5/12; H03B5/1231; H03B5/1203; H03B5/1296
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
IN AN ELECTRONIC MUSICAL INSTRUMENT, A TRANSISTOR OSCILLATOR SUBSTANTIALLY INDEPENDENT OF CHANGES IN VOLTAGE AND AMBIENT TEMPERATURE COMPRISING A TRANSISTOR HAVING A BASE, A COLLECTOR, AND AN EMITTER, A SOURCE OF DIRECT CURRENT POTENTIAL HAVING A PAIR OF TERMINALS, MEANS INCLUDING A RESISTOR CONNECTING THE COLLECTOR TO ONE OF THE TERMINALS, MEANS INCLUDING A SECOND RESISTOR AND A PARTIAL BY-PASS CAPACITOR CONNECTED IN PARALLEL WITH THE SECOND RESISTOR CONNECTING THE EMITTER TO THE OTHER TERMINAL, A RESONANT TANK CIRCUIT CONNECTED BETWEEN THE COLLECTOR AND SAID OTHER TERMINAL, MEANS APPLYING A SMALL BIAS TO THE BASE, A FIRST FEEDBACK PATH CONNECTED BETWEEN THE TANK CIRCUIT AND THE EMITTER, AND A SECOND FEEDBACK PATH CONNECTED BETWEEN THE TANK CIRCUIT AND THE BASE.
Claim 2
Dependent Claim
120 words
IN AN ELECTRONIC MUSICAL INSTRUMENT, A TRANSISTOR OSCILLATOR SUBSTANTIALLY INDEPENDENT OF CHANGES IN VOLTAGE AND AMBIENT TEMPERATURE COMPRISING A TRANSISTOR HAVING A BASE, A COLLECTOR, AND AN EMITTER, A SOURCE OF DIRECT CURRENT POTENTIAL HAVING A PAIR OF TERMINALS, MEANS INCLUDING A RESISTOR CONNECTING THE COLLECTOR TO ONE OF THE TERMINALS, MEANS INCLUDING A SECOND RESISTOR AND A PARTIAL BY-PASS CAPACITOR CONNECTED IN PARALLEL WITH THE SECOND RESISTOR CONNECTING THE EMITTER TO THE OTHER TERMINAL, A RESONANT TANK CIRCUIT CONNECTED BETWEEN THE COLLECTOR AND SAID OTHER TERMINAL, MEANS APPLYING A SMALL BIAS TO THE BASE, A FIRST FEEDBACK PATH CONNECTED BETWEEN THE TANK CIRCUIT AND THE EMITTER, AND A SECOND FEEDBACK PATH CONNECTED BETWEEN THE TANK CIRCUIT AND THE BASE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |