Patent US3094697A successfully refreshed from Google Patents.
US3094697A
Expired / Lapsed
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Frequency modulated approach beacon
Assignee: International Standard Electric Corp
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Filing: 1961-04-18
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Granted: 1963-06-18
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Expires: 1981-04-18
Abstract
No abstract record available.
Inventors
- 👤 Kramar Ernst
- 👤 Steiner Fritz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:13
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02; G01S1/08; G01S1/38; G01S1/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A DOPPLER VOR BEACON HAVING A FREQUENCY DEVIATION DIRECTIONAL PATTERN TO PRODUCE AN AIRCRAFT LANDING PATH COMPRISING A PLURALITY OF ANTENNAS DISPOSED IN A LINEAR ARRAY, A FIRST TRANSMITTER HAVING AN OUTPUT OF A FIRST FREQUENCY, A SECOND TRANSMITTER HAVING AN OUTPUT OF A SECOND FREQUENCY, SWITCHING MEANS COUPLING THE OUTPUT OF SAID FIRST AND SECOND TRANSMITTER SUCCESSIVELY AND CYCLICALLY TO EACH SAID ANTENNA, SAID OUTPUT OF SAID FIRST TRANSMITTER BEING AMPLITUDE MODULATED AT THE SWITCHING FRE-
Claim 2
Dependent Claim
77 words
A DOPPLER VOR BEACON HAVING A FREQUENCY DEVIATION DIRECTIONAL PATTERN TO PRODUCE AN AIRCRAFT LANDING PATH COMPRISING A PLURALITY OF ANTENNAS DISPOSED IN A LINEAR ARRAY, A FIRST TRANSMITTER HAVING AN OUTPUT OF A FIRST FREQUENCY, A SECOND TRANSMITTER HAVING AN OUTPUT OF A SECOND FREQUENCY, SWITCHING MEANS COUPLING THE OUTPUT OF SAID FIRST AND SECOND TRANSMITTER SUCCESSIVELY AND CYCLICALLY TO EACH SAID ANTENNA, SAID OUTPUT OF SAID FIRST TRANSMITTER BEING AMPLITUDE MODULATED AT THE SWITCHING FRE-
References Cited (Backward Citations)
US2411518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |