US3273148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Terrain-viewing system
Assignee: RTX Corp
•
Filing: 1959-12-14
•
Granted: 1966-09-13
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Expires: 1979-12-14
Abstract
No abstract record available.
Inventors
- 👤 Albert G Wood
- 👤 William W Fenn
- 👤 Thomas D Kegelman
- 👤 Howard S Halpern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:57
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/88; G01S13/93; G01S13/933; G01S13/935
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
65 words
A TERRAIN-VIEWING SYSTEM INCLUDING IN COMBINATION A DISPLAY TUBE PROVIDING A NORMALLY ILLUMINATED SPOT, MEANS FOR TRANSMITTING SIGNALS IN A DOWNWARD DIRECTED PATTERN WHICH IS A VERTICAL AND SUBSTANTIALLY KNIFE-LIKE PLANE SUBTENDING A SMALL AZIMUTHAL ANGLE, A PAIR OF REFLECTED SIGNAL SENSORS DISPOSED IN A VERTICAL PLANE, AND MEANS RESPONSIVE TO BOTH REFLECTED SIGNAL SENSORS FOR VERTICALLY SWEEPING THE ILLUMINATED SPOT IN AN UPWARD DIRECTION,
Claim 2
Dependent Claim
65 words
A TERRAIN-VIEWING SYSTEM INCLUDING IN COMBINATION A DISPLAY TUBE PROVIDING A NORMALLY ILLUMINATED SPOT, MEANS FOR TRANSMITTING SIGNALS IN A DOWNWARD DIRECTED PATTERN WHICH IS A VERTICAL AND SUBSTANTIALLY KNIFE-LIKE PLANE SUBTENDING A SMALL AZIMUTHAL ANGLE, A PAIR OF REFLECTED SIGNAL SENSORS DISPOSED IN A VERTICAL PLANE, AND MEANS RESPONSIVE TO BOTH REFLECTED SIGNAL SENSORS FOR VERTICALLY SWEEPING THE ILLUMINATED SPOT IN AN UPWARD DIRECTION,
Claim 3
Dependent Claim
53 words
AN INFORMATION RECORDING SYSTEM INCLUDING IN COMBINATION A RECORDING AREA, MEANS FOR EXCITING A SPOT IN THE AREA, A SIGNAL SOURCE PROVIDING A VARIABLE OUTPUT IN ACCORDANCE WITH THE INFORMATION TO BE RECORDED, AND MEANS RESPONSIVE TO SAID OUTPUT FOR CAUSING THE EXCITED SPOT TO SCAN THE AREA AT VARYING INSTANTANEOUS SWEEP RATES.
Claim 4
Dependent Claim
53 words
AN INFORMATION RECORDING SYSTEM INCLUDING IN COMBINATION A RECORDING AREA, MEANS FOR EXCITING A SPOT IN THE AREA, A SIGNAL SOURCE PROVIDING A VARIABLE OUTPUT IN ACCORDANCE WITH THE INFORMATION TO BE RECORDED, AND MEANS RESPONSIVE TO SAID OUTPUT FOR CAUSING THE EXCITED SPOT TO SCAN THE AREA AT VARYING INSTANTANEOUS SWEEP RATES.
References Cited (Backward Citations)
US2300189A
Cited
US2467361A
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US2480208A
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US2724825A
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US2532549A
Cited
US2648838A
Cited
US3088110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |