Patent US3358244A successfully refreshed from Google Patents.
US3358244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Highly linear voltage controlled crystal oscillator
Assignee: Raytheon Co
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Filing: 1965-05-03
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Granted: 1967-12-12
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Expires: 1985-05-03
Abstract
No abstract record available.
Inventors
- 👤 Ho Er-Chun
- 👤 John J Fackeldey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:51
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/30; H03B5/32; H03B5/36; H03B5/366; H03B5/368
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
AN OSCILLATOR CIRCUIT COMPRISING: A TRANSISTOR HAVING AN EMITER ELECTRODE, A COLLECTOR ELECTRODE, AND A BASE ELECTRODE; A TRANSFORMER HAVING A PRIMARY WINDING AND A SECONARY WINDING; SAID PRIMARY WINDING HAVING ONE TERMINAL CONNECTED TO SAID COLLECTOR ELECTRODE; A CAPACITOR CONNECTED ACROSS SAID PRIMARY WINDING; A FEEDBACK PATH COUPLED BETWEEN ONE TERMINAL OF SAID SECONDARY WINDING AND SAID BASE ELECTRODE; SAID FEEDBACK PATH INCLUDING AN ELECTRICALLY VARIABLE CAPACITANCE ARRANGEMENT AND A FREQUENCY STABILIZING NETWORK COUPLED IN SERIES; SAID ELECTRICALLY VARIABLE CAPACITANCE ARRANGEMENT INCLUDING FIRST AND SECOND VARACTOR DIODES CONNECTED IN SERIES IN OPPOSITE
Claim 2
Dependent Claim
93 words
AN OSCILLATOR CIRCUIT COMPRISING: A TRANSISTOR HAVING AN EMITER ELECTRODE, A COLLECTOR ELECTRODE, AND A BASE ELECTRODE; A TRANSFORMER HAVING A PRIMARY WINDING AND A SECONARY WINDING; SAID PRIMARY WINDING HAVING ONE TERMINAL CONNECTED TO SAID COLLECTOR ELECTRODE; A CAPACITOR CONNECTED ACROSS SAID PRIMARY WINDING; A FEEDBACK PATH COUPLED BETWEEN ONE TERMINAL OF SAID SECONDARY WINDING AND SAID BASE ELECTRODE; SAID FEEDBACK PATH INCLUDING AN ELECTRICALLY VARIABLE CAPACITANCE ARRANGEMENT AND A FREQUENCY STABILIZING NETWORK COUPLED IN SERIES; SAID ELECTRICALLY VARIABLE CAPACITANCE ARRANGEMENT INCLUDING FIRST AND SECOND VARACTOR DIODES CONNECTED IN SERIES IN OPPOSITE
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) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |