US3291906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft visual indicating or display systems utilizing a cathode ray tube
Assignee: Specto Ltd
•
Filing: 1963-05-01
•
Granted: 1966-12-13
•
Expires: 1983-05-01
Abstract
No abstract record available.
Inventors
- 👤 Ward John Joseph
- 👤 Mccarthy Brian Dennis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:55
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
IN AN AIRCRAFT, A DISPLAY APPARATUS FOR PRESENTING TO A PILOT A DISPLAY OF FLIGHT INSTRUMENT INFORMATION SUPERIMPOSED ON HIS LINE OF SIGHT FORWARD OF THE AIRCRAFT, SAID APPARATUS COMPRISING A SCREEN, A PARTLY REFLECTING MIRROR DISPOSED IN SAID LINE OF SIGHT TO DIRECT LIGHT FROM SAID SCREEN INTO SAID LINE OF SIGHT, COLLIMATING MEANS INTERPOSED BETWEEN SAID SCREEN AND SAID MIRROR, A PLURALITY OF WRITING MEANS FOR TRACING RESPECTIVE COMPONENT IMAGES OF THE DISPLAY ON DIFFERENT REGIONS OF SAID SCREEN, AND MEANS FOR RENDERING VISIBLE AND DISTINGUISHING THE IMAGES FROM DIFFERENT REGIONS.
Claim 2
Dependent Claim
93 words
IN AN AIRCRAFT, A DISPLAY APPARATUS FOR PRESENTING TO A PILOT A DISPLAY OF FLIGHT INSTRUMENT INFORMATION SUPERIMPOSED ON HIS LINE OF SIGHT FORWARD OF THE AIRCRAFT, SAID APPARATUS COMPRISING A SCREEN, A PARTLY REFLECTING MIRROR DISPOSED IN SAID LINE OF SIGHT TO DIRECT LIGHT FROM SAID SCREEN INTO SAID LINE OF SIGHT, COLLIMATING MEANS INTERPOSED BETWEEN SAID SCREEN AND SAID MIRROR, A PLURALITY OF WRITING MEANS FOR TRACING RESPECTIVE COMPONENT IMAGES OF THE DISPLAY ON DIFFERENT REGIONS OF SAID SCREEN, AND MEANS FOR RENDERING VISIBLE AND DISTINGUISHING THE IMAGES FROM DIFFERENT REGIONS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |