US3228281A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tactical navigation display system
Assignee: Individual
•
Filing: 1961-09-01
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Granted: 1966-01-11
•
Expires: 1981-09-01
Abstract
No abstract record available.
Inventors
- 👤 Pliny G Holt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:04
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
DISPLAY APPARATUS FOR CORRELATING AN AIRCRAFT GROUND TRACK INDICATION AND A TACTICAL SITUATION, COMPRISING, IN COMBINATION: A TRANSPARENT SCREEN ADAPTED TO BE MOUNTED IN AN INSTRUMENT PANEL O AN AIRCRAFT; FIRST LIGHT PROJECTING MEANS MOUNTED ADJACENT TO SAID SCREEN FOR PROJECTING AN AIRCRAFT SYMBOL ON SAID SCREEN; MEANS FOR PRODUCING A SIGNAL RESPONSIVE TO THE GROUND SPEED OF THE AIRCRAFT OPERATIVELY CONNECTED TO SAID FIRST PROJECTING MEANS FOR MOVING SAID AIRCRAFT SYMBOL AND SAID SCREEN IN ACCORDANCE WITH THE GROUND TRACK OF THE AIRCRAFT; MEANS FOR PRODUCING A SIGNAL RESPONSIVE TO THE GROUNG TRACK HEADING OF THE AIRCRAFT CONNECTED OPERATIVELY TO SAID PROJECTING MEANS, MEANS FOR ROTATING SAID AIRCRAFT SYMBOL AND SAID SCREEN IN ACCORDANCE WITH THE HEADING; SECOND LIGHT PROJECTING MEANS MOUNTED ADJACENT TO SAID SCREEN FOR PROJECTING A MARKER SYMBOL AND STROBE SYMBOL RADIATING THEREFROM ON SAID SCREEN, SAID STROBE FURTHER CHARACTERIZED BY A TARGET SYMBOL AT THE OUTER END; SLEWING MEANS OPERATIVELY CONNECTED TO SAID SECOND PROJECTING MEANS FOR MANUALLY PO-
Claim 2
Dependent Claim
164 words
DISPLAY APPARATUS FOR CORRELATING AN AIRCRAFT GROUND TRACK INDICATION AND A TACTICAL SITUATION, COMPRISING, IN COMBINATION: A TRANSPARENT SCREEN ADAPTED TO BE MOUNTED IN AN INSTRUMENT PANEL O AN AIRCRAFT; FIRST LIGHT PROJECTING MEANS MOUNTED ADJACENT TO SAID SCREEN FOR PROJECTING AN AIRCRAFT SYMBOL ON SAID SCREEN; MEANS FOR PRODUCING A SIGNAL RESPONSIVE TO THE GROUND SPEED OF THE AIRCRAFT OPERATIVELY CONNECTED TO SAID FIRST PROJECTING MEANS FOR MOVING SAID AIRCRAFT SYMBOL AND SAID SCREEN IN ACCORDANCE WITH THE GROUND TRACK OF THE AIRCRAFT; MEANS FOR PRODUCING A SIGNAL RESPONSIVE TO THE GROUNG TRACK HEADING OF THE AIRCRAFT CONNECTED OPERATIVELY TO SAID PROJECTING MEANS, MEANS FOR ROTATING SAID AIRCRAFT SYMBOL AND SAID SCREEN IN ACCORDANCE WITH THE HEADING; SECOND LIGHT PROJECTING MEANS MOUNTED ADJACENT TO SAID SCREEN FOR PROJECTING A MARKER SYMBOL AND STROBE SYMBOL RADIATING THEREFROM ON SAID SCREEN, SAID STROBE FURTHER CHARACTERIZED BY A TARGET SYMBOL AT THE OUTER END; SLEWING MEANS OPERATIVELY CONNECTED TO SAID SECOND PROJECTING MEANS FOR MANUALLY PO-
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) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |