US3235873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerial survey system
Assignee: TELEVISION ASSOCIATES OF INDIA
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Filing: 1962-08-24
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Granted: 1966-02-15
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Expires: 1982-08-24
Abstract
No abstract record available.
Inventors
- 👤 Jr William C Eddy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:58
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
AN AERIAL SURVEY SYSTEM IN AN AIRPLANE, COMPRISING A RADIO ALTIMETER FOR DETERMINING THE ALTITUDE OF SAID AIRPLANE ABOVE GROUND LEVEL AND PRODUCING A VOLTAGE PROPORTIONAL TO SAID ALTITUDE, A BAROMETRIC ALTIMETER FOR DETERMINING AN ABSOLUTE ALTITUDE OF SAID AIRPLANE AND PRODUCING A VOLTAGE PROPORTIONAL TO SAID ABSOLUTE ALTITUDE, A COMPUTER, SAID FIRST AND SECOND MENTIONED ALTIMETERS HAVING THEIR OUTPUTS CONNECTED TO INPUTS OF SAID COMPUTER, A STRIP CHART RECORDER HAVING A PLURALITY OF PENS AND A DRIVE MOTOR, THE RATE OF OPERATION OF SAID DRIVE MOTOR BEING PROPORTIONAL TO ITS INPUT VOLTAGE, THE OUTPUT OF SAID COMPUTER BEING CONNECTED TO ONE OF SAID PLURALITY PENS, A TIMER, SAID TIMER BEING CONNECTED TO ANOTHER OF SAID PLURALITY OF PENS, A CAMERA FOR TAKING PICTURES OF THE TERRAIN BEING SURVEYED, SAID TIMER BEING CONNECTED TO OPERATE SAID CAMERA, A GAUAGE PLACED IN THE FIELD OF VIEW OF SAID CAMERA AND CONNECTED TO THE OUTPUT OF SAID RADIO ALTIMETER, A GAUGE PLACED IN THE FIELD OF VIEW OF SAID CAMERA AND CONNECTED TO THE OUTPUT OF SAID
Claim 2
Dependent Claim
175 words
AN AERIAL SURVEY SYSTEM IN AN AIRPLANE, COMPRISING A RADIO ALTIMETER FOR DETERMINING THE ALTITUDE OF SAID AIRPLANE ABOVE GROUND LEVEL AND PRODUCING A VOLTAGE PROPORTIONAL TO SAID ALTITUDE, A BAROMETRIC ALTIMETER FOR DETERMINING AN ABSOLUTE ALTITUDE OF SAID AIRPLANE AND PRODUCING A VOLTAGE PROPORTIONAL TO SAID ABSOLUTE ALTITUDE, A COMPUTER, SAID FIRST AND SECOND MENTIONED ALTIMETERS HAVING THEIR OUTPUTS CONNECTED TO INPUTS OF SAID COMPUTER, A STRIP CHART RECORDER HAVING A PLURALITY OF PENS AND A DRIVE MOTOR, THE RATE OF OPERATION OF SAID DRIVE MOTOR BEING PROPORTIONAL TO ITS INPUT VOLTAGE, THE OUTPUT OF SAID COMPUTER BEING CONNECTED TO ONE OF SAID PLURALITY PENS, A TIMER, SAID TIMER BEING CONNECTED TO ANOTHER OF SAID PLURALITY OF PENS, A CAMERA FOR TAKING PICTURES OF THE TERRAIN BEING SURVEYED, SAID TIMER BEING CONNECTED TO OPERATE SAID CAMERA, A GAUAGE PLACED IN THE FIELD OF VIEW OF SAID CAMERA AND CONNECTED TO THE OUTPUT OF SAID RADIO ALTIMETER, A GAUGE PLACED IN THE FIELD OF VIEW OF SAID CAMERA AND CONNECTED TO THE OUTPUT OF SAID
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) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |