US3076945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric oscillators
Assignee: Individual
•
Filing: 1959-03-03
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Granted: 1963-02-05
•
Expires: 1979-03-03
Abstract
No abstract record available.
Inventors
- 👤 Coombs Frederick Leslie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:58
CPC Classifications
H; H03; H03G; H03G1/00; H03G1/0005; H03G1/0035; H03G1/0082; H03B; H03B5/00; H03B5/08; H03B5/12; H03B5/1203; H03B5/1231; H03C; H03C3/00; H03C3/10; H03C3/24; H03C3/245
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A TRANSISTOR OSCILLATOR COMPRISING A TRANSISTOR HAVING A BASE ELECTRODE, A COLLECTOR ELECTRODE AND AN EMITTER ELECTRODE, THE COLLECTOR ELECTRODE BEING CONNECTED THROUGH AN INDUCTOR TO ONE TERMINAL OF A SOURCE OF OPERATING VOLTAGE AND THROUGH A CAPACITOR TO THE BASE ELECTRODE, THE BASE ELECTRODE BEING CONNECTED THROUGH A FURTHER INDUCTOR TO ANOTHER TERMINAL OF THE SAID SOURCE WHICH IS OF THE OPPOSITE POLARITY TO THE FIRST SAID TERMINAL, AND THE EMITTER ELECTRODE BEING CONNECTED THROUGH A RESISTIVE DEVICE TO THE SAID OTHER TERMINAL OF THE SOURCE, THE ARRANGEMENT BEING SUCH THAT, IN OPERATION, FEEDBACK FROM THE COLLECTOR ELECTRODE PRINCIPALLY BY WAY OF THE CAPACITOR TO THE BASE ELECTRODE IS SUCH AS TO SUSTAIN OSCILLATIONS IN THE CIRCUIT.
Claim 2
Dependent Claim
118 words
A TRANSISTOR OSCILLATOR COMPRISING A TRANSISTOR HAVING A BASE ELECTRODE, A COLLECTOR ELECTRODE AND AN EMITTER ELECTRODE, THE COLLECTOR ELECTRODE BEING CONNECTED THROUGH AN INDUCTOR TO ONE TERMINAL OF A SOURCE OF OPERATING VOLTAGE AND THROUGH A CAPACITOR TO THE BASE ELECTRODE, THE BASE ELECTRODE BEING CONNECTED THROUGH A FURTHER INDUCTOR TO ANOTHER TERMINAL OF THE SAID SOURCE WHICH IS OF THE OPPOSITE POLARITY TO THE FIRST SAID TERMINAL, AND THE EMITTER ELECTRODE BEING CONNECTED THROUGH A RESISTIVE DEVICE TO THE SAID OTHER TERMINAL OF THE SOURCE, THE ARRANGEMENT BEING SUCH THAT, IN OPERATION, FEEDBACK FROM THE COLLECTOR ELECTRODE PRINCIPALLY BY WAY OF THE CAPACITOR TO THE BASE ELECTRODE IS SUCH AS TO SUSTAIN OSCILLATIONS IN THE CIRCUIT.
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) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |