US3111663A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radar and television navigation aid
Assignee: General Precision Inc
•
Filing: 1960-11-07
•
Granted: 1963-11-19
•
Expires: 1980-11-07
Abstract
No abstract record available.
Inventors
- 👤 Stavis Gus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:31
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/88; G01S13/93; G01S13/937
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
114 words
A NAVIGATION AID, COMPRISING, AN OMNIDIRECTIONAL ANTENNA AT A FIRST LOCATION, A CONTINUOUSLY ROTATING DIRECTIONAL ANTENNA AT A SECOND LOCATION, A RADAR SYSTEM FOR GENERATING A FIRST VISUAL REPRESENTATION OF THE FIXED AND MOVING OBJECTS WITHIN AN AREA OF OPERATIONS, A SECOND VISUAL REPRESENTATION OF A FAMILY OF HYPERBOLAE HAVING FOCI AT SAID FIRST AND SECOND LOCATIONS, MEANS FOR BROADCASTING OVER SAID OMNIDIRECTIONAL ANTENNA A TELEVISION SIGNAL INDICATIVE OF SAID FIRST VISUAL REPRESENTATION WITH SAID SECOND VISUAL REPRESENTATION SUPERIMPOSED THEREON, AN INDICATOR ROTATING IN SYNCHRONISM WITH SAID DIRECTIONAL ANTENNA, A TELEVISION CAMERA POSITIONED TO VIEW SAID INDICATOR, AND AN OSCILLATOR CONTROLLED BY THE VIDEO SIGNAL OUTPUT OF SAID CAMERA FOR ENERGIZING SAID DIRECTIONAL ANTENNA.
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) | 1966-11-18 | 1967-05-20 | 1967-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-18 | 1971-05-20 | 1971-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-18 | 1975-05-20 | 1975-11-19 | $7700.00 | Window Closed / Lapsed |