Patent US3303435A successfully refreshed from Google Patents.
US3303435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sinewave oscillator with automatic frequency control
Assignee: Lockheed Martin Corp
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Filing: 1964-06-26
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Granted: 1967-02-07
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Expires: 1984-06-26
Abstract
No abstract record available.
Inventors
- 👤 Richard W Bradmiller
- 👤 Harold P Bruce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:27
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/08; H03B5/12; H03B5/1231; H03B5/1206; H03B5/1234
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
AN OSCILLATOR FOR GENERATING A STABLE, LOW FREQUENCY, SUBSTANTIALLY SINUSOIDAL WAVE COMPRISING, IN COMBINATION: (A) FIRST AND SECOND ACTIVE MEANS, EACH INCLUDING ELECTRON EMITTING, COLLECTING AND CONTROL MEANS; (B) MEANS FOR COUPLING THE COLLECTING MEANS OF SAID FIRST ACTIVE MEANS TO THE CONTROL MEANS OF SAID SECOND ACTIVE MEANS IN A FORWARD LOOP MANNER; (C) MEANS FOR COUPLING THE EMITTING MEANS OF SAID SECOND ACTIVE MEANS TO THE CONTROL MEANS OF SAID FIRST ACTIVE MEANS IN A DEGENERATIVE MANNER; (D) REACTIVE MEANS FOR COUPLING TOGETHER SAID EMITTING MEANS OF SAID FIRST AND SECOND ACTIVE MEANS IN A REGENERATIVE MANNER, WHEREBY SAID REACTIVE MEANS ESTABLISHES THE REPETITION RATE OF SAID OSCILLATOR; (E) EXTERNAL CONTROL VOLTAGE; AND (F) THIRD ACTIVE MEANS FOR COUPLING SAID EXTERNAL CONTROL VOLTAGE TO SAID REACTIVE MEANS THEREBY AUTOMATICALLY ADJUSTING THE OPERATING FREQUENCY OF SAID OSCILLATOR.
Claim 2
Dependent Claim
138 words
AN OSCILLATOR FOR GENERATING A STABLE, LOW FREQUENCY, SUBSTANTIALLY SINUSOIDAL WAVE COMPRISING, IN COMBINATION: (A) FIRST AND SECOND ACTIVE MEANS, EACH INCLUDING ELECTRON EMITTING, COLLECTING AND CONTROL MEANS; (B) MEANS FOR COUPLING THE COLLECTING MEANS OF SAID FIRST ACTIVE MEANS TO THE CONTROL MEANS OF SAID SECOND ACTIVE MEANS IN A FORWARD LOOP MANNER; (C) MEANS FOR COUPLING THE EMITTING MEANS OF SAID SECOND ACTIVE MEANS TO THE CONTROL MEANS OF SAID FIRST ACTIVE MEANS IN A DEGENERATIVE MANNER; (D) REACTIVE MEANS FOR COUPLING TOGETHER SAID EMITTING MEANS OF SAID FIRST AND SECOND ACTIVE MEANS IN A REGENERATIVE MANNER, WHEREBY SAID REACTIVE MEANS ESTABLISHES THE REPETITION RATE OF SAID OSCILLATOR; (E) EXTERNAL CONTROL VOLTAGE; AND (F) THIRD ACTIVE MEANS FOR COUPLING SAID EXTERNAL CONTROL VOLTAGE TO SAID REACTIVE MEANS THEREBY AUTOMATICALLY ADJUSTING THE OPERATING FREQUENCY OF SAID OSCILLATOR.
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |