US3160879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Object locating system
Assignee: Northrop Grumman Guidance and Electronics Co Inc
•
Filing: 1961-07-17
•
Granted: 1964-12-08
•
Expires: 1981-07-17
Abstract
No abstract record available.
Inventors
- 👤 Downing James Robert
- 👤 Jr John H Mcclow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:07
CPC Classifications
G; G01; G01S; G01S11/00; G01S11/02; G01S11/026; F; F41; F41G; F41G3/00; F41G3/14; F41G3/16; F42; F42B; F42B12/00; F42B12/02; F42B12/36; F42B12/365; G01S1/00; G01S1/02; G01S5/00; G01S5/02; G01S5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
A SYSTEM FOR LOCATING THE POSITION OF AN OBJECT HAVING A BEACON TRANSMITTER CONTAINED THEREIN WHICH IS ADAPTED TO RADIATE A RADIO SIGNAL, SAID SYSTEM INCLUDING: FIRST RADIO TRANSMITTING AND RECEIVING MEANS, A UNIT ADAPTED TO BE AIRBORNE AND INCLUDING FURTHER RADIO TRANSMITTING AND RECEIVING MEANS, A DIRECTIONAL RECEIVING ANTENNA MOUNTED ON SAID UNIT AND COUPLED TO THE FURTHER RADIO RECEIVING MEANS, AN OMNI-DIRECTIONAL TRANSMITTING ANTENNA POSITIONED ON SAID UNIT AND COUPLED TO THE FURTHER RADIO TRANSMITTING MEANS, AND MEANS FOR CAUSING THE DIRECTIONAL ANTENNA ON SAID UNIT CYCLICALLY TO PERFORM A SCAN TO SUCCESSIVELY INTERCEPT SIGNALS FROM THE BEACON TRANSMITTER IN THE OBJECT AND FROM THE SAID FIRST RADIO TRANSMITTING MEANS AT RESPECTIVE ANGULAR POSITIONS OF THE DIRECTIONAL RECEIVING ANTENNA ON SAID UNIT DURING EACH SCANNING CYCLE AND TO INTRODUCE SUCH SIGNALS TO SAID FURTHER RADIO RECEIVING MEANS IN SAID UNIT, SAID FURTHER TRANSMITTING MEANS IN SAID UNIT SERVING TO SUCCESSIVELY RE-TRANSMIT OVER SAID OMNI-DIRECTIONAL TRANSMITTING ANTENNA TO SAID FIRST RECEIVING MEANS THE SIGNALS INTRODUCED TO SAID FURTHER RECEIVING MEANS.
Claim 2
Independent Claim
171 words
A SYSTEM FOR LOCATING THE POSITION OF AN OBJECT HAVING A BEACON TRANSMITTER CONTAINED THEREIN WHICH IS ADAPTED TO RADIATE A RADIO SIGNAL, SAID SYSTEM INCLUDING: FIRST RADIO TRANSMITTING AND RECEIVING MEANS, A UNIT ADAPTED TO BE AIRBORNE AND INCLUDING FURTHER RADIO TRANSMITTING AND RECEIVING MEANS, A DIRECTIONAL RECEIVING ANTENNA MOUNTED ON SAID UNIT AND COUPLED TO THE FURTHER RADIO RECEIVING MEANS, AN OMNI-DIRECTIONAL TRANSMITTING ANTENNA POSITIONED ON SAID UNIT AND COUPLED TO THE FURTHER RADIO TRANSMITTING MEANS, AND MEANS FOR CAUSING THE DIRECTIONAL ANTENNA ON SAID UNIT CYCLICALLY TO PERFORM A SCAN TO SUCCESSIVELY INTERCEPT SIGNALS FROM THE BEACON TRANSMITTER IN THE OBJECT AND FROM THE SAID FIRST RADIO TRANSMITTING MEANS AT RESPECTIVE ANGULAR POSITIONS OF THE DIRECTIONAL RECEIVING ANTENNA ON SAID UNIT DURING EACH SCANNING CYCLE AND TO INTRODUCE SUCH SIGNALS TO SAID FURTHER RADIO RECEIVING MEANS IN SAID UNIT, SAID FURTHER TRANSMITTING MEANS IN SAID UNIT SERVING TO SUCCESSIVELY RE-TRANSMIT OVER SAID OMNI-DIRECTIONAL TRANSMITTING ANTENNA TO SAID FIRST RECEIVING MEANS THE SIGNALS INTRODUCED TO SAID FURTHER RECEIVING MEANS.
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) | 1967-12-08 | 1968-06-08 | 1968-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-08 | 1972-06-08 | 1972-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-08 | 1976-06-08 | 1976-12-08 | $7700.00 | Window Closed / Lapsed |