Patent US3248732A successfully refreshed from Google Patents.
US3248732A
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Aircraft position location system
Assignee: TDK Micronas GmbH
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Filing: 1962-10-09
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Granted: 1966-04-26
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Expires: 1982-10-09
Abstract
No abstract record available.
Inventors
- 👤 Benjamin B Mahler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:08
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
IN AN AIRCRAFT POSITION LOCATION SYSTEM FOR DETERMINING THE POSITION OF AN AIRCRAFT WITH RESPECT TO A REFERENCE POINT, THE IMPROVEMENT COMPRISING A SOURCE OF RADIO FREQUENCY ENERGY, FIRST AND SECOND ROTATABLE ANTENNA MEANS EACH ROTATABLE ABOUT RESPECTIVE AXES PASSING THROUGH SAID REFERENCE POINT, EACH OF SAID ROTATABLE ANTENNAS HAVING AN IRREGULAR ANTENNA RADIATION PATTERN AND BEING OPERABLE TO PRODUCE AN AMPLITUDE MODULATED OUTPUT SIGNAL WHEN ENERGIZED BY SAID RADIO FREQUENCY SOURCE AND ROTATED, AND MEANS FOR IMPRESSING A REFERENCE SIG-
Claim 2
Dependent Claim
81 words
IN AN AIRCRAFT POSITION LOCATION SYSTEM FOR DETERMINING THE POSITION OF AN AIRCRAFT WITH RESPECT TO A REFERENCE POINT, THE IMPROVEMENT COMPRISING A SOURCE OF RADIO FREQUENCY ENERGY, FIRST AND SECOND ROTATABLE ANTENNA MEANS EACH ROTATABLE ABOUT RESPECTIVE AXES PASSING THROUGH SAID REFERENCE POINT, EACH OF SAID ROTATABLE ANTENNAS HAVING AN IRREGULAR ANTENNA RADIATION PATTERN AND BEING OPERABLE TO PRODUCE AN AMPLITUDE MODULATED OUTPUT SIGNAL WHEN ENERGIZED BY SAID RADIO FREQUENCY SOURCE AND ROTATED, AND MEANS FOR IMPRESSING A REFERENCE SIG-
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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |