Patent US3246266A successfully refreshed from Google Patents.
US3246266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronically tunable cavity oscillator
Assignee: Lockheed Martin Corp
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Filing: 1964-03-20
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Granted: 1966-04-12
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Expires: 1984-03-20
Abstract
No abstract record available.
Inventors
- 👤 Josept E Racy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:15
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/18; H03B5/1805; H03B2201/00; H03B2201/02; H03B2201/0208
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A RADIO FREQUENCY TUNING MECHANICM COMPRISING IN COMBINATION (A) CONDUCTIVE MEANS FORMING A CAPACITOR PLATE, (B) A QUATER-WAVELENGTH TRANSMISSION LINE HAVING (1) AN INNER CONDUCTOR HAVING FIRST AND SECOND ENDS AND CONNECTED AT SAID FIRST END TO SAID CAPACITOR PLATE, AND (2) AN OUTER CONDUCTOR HAVING FIRST AND SECOND ENDS, (A) SAID SECOND INNER CONDUCTOR END BEING ADJACENT SAID SECND OUTER CONDUCTOR END, AND (B) SAID FIRST INNER CONDUCTOR END EXTENDING BEYOND SAID OUTER CONDUCTOR AT SAID FIRST END THEREOF SO THAT SAID CAPACITOR PLATE IS SPACED OUTWARDLY FROM SAID FIRST END OF SAID OUTER CONDUCTOR, (C) MEANS FORMING A RADIO FREQUENCY IMPEDANCE BETWEEN SAID SECOND ENDS OF SAID CONDUCTORS, SAID RADIO FREQUENCY IMPEDANCE BEING SMALL COMPARED WITH THE CHARACTERISTIC IMPEDANCE OF SAID TRANSMISSION LINE, AND (D) A VARIABLE RADIO FREQUENCY CAPACITANCE DEVICE CONNECTED BETWEEN SAID CAPACITOR PLATE AND SAID OUTER CONDUCTOR AT SAID SECOND END THEREOF.
Claim 2
Dependent Claim
147 words
A RADIO FREQUENCY TUNING MECHANICM COMPRISING IN COMBINATION (A) CONDUCTIVE MEANS FORMING A CAPACITOR PLATE, (B) A QUATER-WAVELENGTH TRANSMISSION LINE HAVING (1) AN INNER CONDUCTOR HAVING FIRST AND SECOND ENDS AND CONNECTED AT SAID FIRST END TO SAID CAPACITOR PLATE, AND (2) AN OUTER CONDUCTOR HAVING FIRST AND SECOND ENDS, (A) SAID SECOND INNER CONDUCTOR END BEING ADJACENT SAID SECND OUTER CONDUCTOR END, AND (B) SAID FIRST INNER CONDUCTOR END EXTENDING BEYOND SAID OUTER CONDUCTOR AT SAID FIRST END THEREOF SO THAT SAID CAPACITOR PLATE IS SPACED OUTWARDLY FROM SAID FIRST END OF SAID OUTER CONDUCTOR, (C) MEANS FORMING A RADIO FREQUENCY IMPEDANCE BETWEEN SAID SECOND ENDS OF SAID CONDUCTORS, SAID RADIO FREQUENCY IMPEDANCE BEING SMALL COMPARED WITH THE CHARACTERISTIC IMPEDANCE OF SAID TRANSMISSION LINE, AND (D) A VARIABLE RADIO FREQUENCY CAPACITANCE DEVICE CONNECTED BETWEEN SAID CAPACITOR PLATE AND SAID OUTER CONDUCTOR AT SAID SECOND END THEREOF.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |