US3265987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parallel-connected crystal oscillators with controllable q circuits
Assignee: Stromberg Carlson Corp
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Filing: 1965-02-15
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Granted: 1966-08-09
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Expires: 1985-02-15
Abstract
No abstract record available.
Inventors
- 👤 Hahnel Alwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:04
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/30; H03B5/32; H03B5/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
IN COMBINATION, A FIRST OSCILLATOR INCLUDING FREQUENCY-DETERMINING MEANS FOR NORMALLY PRODUCING OSCILLATIONS THEREFROM HAVING A FREQUENCY WITHIN A PREDETERMINED FREQUENCY BAND, A SECOND OSCILLATOR INCLUDING FREQUENCY-DETERMINING MEANS FOR NORMALLY PRODUCING OSCILLATIONS THEREFROM HAVING A FREQUENCY WITHIN SAID PREDETERMINED FREQUENCY BAND, THE FREQUENCY-DETERMINING MEANS OF EACH OF SAID RESPECTIVE FIRST AND SECOND OSCILLATORS INCLUDING SWITCHING MEANS FOR SELECTIVELY SWITCHING THE Q OF THAT FREQUENCY-DETERMINING MEANS BETWEEN A FIRST GIVEN RELATIVELY HIGH VALUE THEREOF AND A SECOND GIVEN RELATIVELY LOW VALUE THEREOF, THE SWITCHING MEANS OF EITHER ONE OF SAID FIRST AND SECOND OSCILLATORS BEING SELECTIVELY SET TO PROVIDE SAID FIRST GIVEN VALUE OF Q FOR THE FREQUENCY-DETERMINING MEANS THEREOF WHILE THE SWITCHING MEANS OF THE OTHER OF SAID FIRST AND SECOND OSCILLATORS IS SELECTIVELY SET TO PROVIDE SAID SECOND GIVEN VALUE OF Q FOR THE FREQUENCY-DETERMINING MEANS THERE-
Claim 2
Dependent Claim
137 words
IN COMBINATION, A FIRST OSCILLATOR INCLUDING FREQUENCY-DETERMINING MEANS FOR NORMALLY PRODUCING OSCILLATIONS THEREFROM HAVING A FREQUENCY WITHIN A PREDETERMINED FREQUENCY BAND, A SECOND OSCILLATOR INCLUDING FREQUENCY-DETERMINING MEANS FOR NORMALLY PRODUCING OSCILLATIONS THEREFROM HAVING A FREQUENCY WITHIN SAID PREDETERMINED FREQUENCY BAND, THE FREQUENCY-DETERMINING MEANS OF EACH OF SAID RESPECTIVE FIRST AND SECOND OSCILLATORS INCLUDING SWITCHING MEANS FOR SELECTIVELY SWITCHING THE Q OF THAT FREQUENCY-DETERMINING MEANS BETWEEN A FIRST GIVEN RELATIVELY HIGH VALUE THEREOF AND A SECOND GIVEN RELATIVELY LOW VALUE THEREOF, THE SWITCHING MEANS OF EITHER ONE OF SAID FIRST AND SECOND OSCILLATORS BEING SELECTIVELY SET TO PROVIDE SAID FIRST GIVEN VALUE OF Q FOR THE FREQUENCY-DETERMINING MEANS THEREOF WHILE THE SWITCHING MEANS OF THE OTHER OF SAID FIRST AND SECOND OSCILLATORS IS SELECTIVELY SET TO PROVIDE SAID SECOND GIVEN VALUE OF Q FOR THE FREQUENCY-DETERMINING MEANS THERE-
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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |