US3359408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Navigational display devices for use on moving vehicles
Assignee: Ferranti International PLC
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Filing: 1964-04-14
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Granted: 1967-12-19
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Expires: 1984-04-14
Abstract
No abstract record available.
Inventors
- 👤 Briggs Thomas Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:03
CPC Classifications
G; G09; G09B; G09B29/00; G09B29/06; G01; G01C; G01C21/00; G01C21/20; G01C21/22; G01S; G01S1/00; G01S1/02; G06; G06G; G06G7/00; G06G7/48; G06G7/78
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
A NAVIGATIONAL DISPLAY DEVICE FOR USE ON A MOVING VEHICLE INCLUDING A VIEWING SCREEN HAVING A FIDUCIAL POINT FOR INDICATING THE PRESENT POSITION OF THE VEHICLE, MEANS FOR PROJECTING AN IMAGE OF PART OF A CONICAL PROJECTION MAP ONTO SAID VIEWING SCREEN, DRIVING MEANS FOR MOVING SAID IMAGE IN TWO MUTUALLY PERPENDICULAR DIRECTIONS RELATIVE TO THE FIDUCIAL POINT, SAID IMAGE BEING SO PROJECTED ONTO SAID SCREEN THAT A GIVEN MERIDIAN OF THE MAP IMAGE IS PARALLEL TO ONE OF SAID TWO MUTUALLY PERPENDICULAR DIRECTIONS, MEANS FOR DETERMINING THE MOVEMENTS OF SAID VEHICLE, MEANS FOR DETERMINING THE TRACK ANGLE OF SAID VEHICLE, MEANS FOR DETERMINING THE CONVERGENCE ANGLE OF THE MERIDIAN OF THE PRESENT POSITION OF THE VEHICLE RELATIVE TO SAID GIVEN MERIDIAN, MEANS FOR RESOLVING SAID VEHICLE MOVEMENTS THROUGH THE ASLGEBRAIC SUM OF SAID TRACK ANGLE AND SAID CONVERGENCE ANGLE TO DETERMINE THE COMPONENTS OF SAID MOVEMENTS PARALLEL TO AND PERPENDICULAR TO SAID GIVEN MERIDIAN, AND MEANS FOR ACTUATING SAID DRIVING MEANS FOR MOVING SAID IMAGE IN DIRECTIONS PARALLEL TO AND PERPENDICULAR TO SAID GIVEN MERIDIAN IN ACCORDANCE WITH SAID RESOLVED COMPONENTS OF SAID MOVEMENTS.
Claim 2
Dependent Claim
185 words
A NAVIGATIONAL DISPLAY DEVICE FOR USE ON A MOVING VEHICLE INCLUDING A VIEWING SCREEN HAVING A FIDUCIAL POINT FOR INDICATING THE PRESENT POSITION OF THE VEHICLE, MEANS FOR PROJECTING AN IMAGE OF PART OF A CONICAL PROJECTION MAP ONTO SAID VIEWING SCREEN, DRIVING MEANS FOR MOVING SAID IMAGE IN TWO MUTUALLY PERPENDICULAR DIRECTIONS RELATIVE TO THE FIDUCIAL POINT, SAID IMAGE BEING SO PROJECTED ONTO SAID SCREEN THAT A GIVEN MERIDIAN OF THE MAP IMAGE IS PARALLEL TO ONE OF SAID TWO MUTUALLY PERPENDICULAR DIRECTIONS, MEANS FOR DETERMINING THE MOVEMENTS OF SAID VEHICLE, MEANS FOR DETERMINING THE TRACK ANGLE OF SAID VEHICLE, MEANS FOR DETERMINING THE CONVERGENCE ANGLE OF THE MERIDIAN OF THE PRESENT POSITION OF THE VEHICLE RELATIVE TO SAID GIVEN MERIDIAN, MEANS FOR RESOLVING SAID VEHICLE MOVEMENTS THROUGH THE ASLGEBRAIC SUM OF SAID TRACK ANGLE AND SAID CONVERGENCE ANGLE TO DETERMINE THE COMPONENTS OF SAID MOVEMENTS PARALLEL TO AND PERPENDICULAR TO SAID GIVEN MERIDIAN, AND MEANS FOR ACTUATING SAID DRIVING MEANS FOR MOVING SAID IMAGE IN DIRECTIONS PARALLEL TO AND PERPENDICULAR TO SAID GIVEN MERIDIAN IN ACCORDANCE WITH SAID RESOLVED COMPONENTS OF SAID MOVEMENTS.
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) | 1970-12-18 | 1971-06-19 | 1971-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-18 | 1975-06-19 | 1975-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-18 | 1979-06-19 | 1979-12-19 | $7700.00 | Window Closed / Lapsed |