US3308403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillator circuit
Assignee: Sony Corp
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Filing: 1964-04-03
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Granted: 1967-03-07
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Expires: 1984-04-03
Abstract
No abstract record available.
Inventors
- 👤 Kubota Yasuharu
- 👤 Utsunomiya Tsuneo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:25
CPC Classifications
H; H03; H03J; H03J7/00; H03J7/02; H03J7/04; H03J7/045; H03B; H03B5/00; H03B5/08; H03B5/12; H03B5/1203; H03B5/1231; H03B5/1237; H03B5/124; H03B5/1256
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
AN OSCILLATOR CIRCUIT COMPRISING A VARIABLE TUNING ELEMENT, A FINE-TUNING DEVICE, A PARALLEL RESONANCE CIRCUIT, AND MEANS FOR SHUNTING SAID VARIABLE TUNING ELEMENT WITH SAID FINE-TUNING DEVICE AND SAID PARALLEL RESONANCE CIRCUIT, THE FREQUENCY VARIATION PRODUCED BY A GIVEN ADJUSTMENT OF SAID FINE-TUNING DEVICE BEING SUBSTANTIALLY CONSTANT INDEPENDENT OF THE OSCILLATING FREQUENCY OF SAID CIRCUIT.
Claim 2
Dependent Claim
55 words
AN OSCILLATOR CIRCUIT COMPRISING A VARIABLE TUNING ELEMENT, A FINE-TUNING DEVICE, A PARALLEL RESONANCE CIRCUIT, AND MEANS FOR SHUNTING SAID VARIABLE TUNING ELEMENT WITH SAID FINE-TUNING DEVICE AND SAID PARALLEL RESONANCE CIRCUIT, THE FREQUENCY VARIATION PRODUCED BY A GIVEN ADJUSTMENT OF SAID FINE-TUNING DEVICE BEING SUBSTANTIALLY CONSTANT INDEPENDENT OF THE OSCILLATING FREQUENCY OF SAID 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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |