US3231887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft guidance system including altitude controlling mechanism
Assignee: Goodyear Aerospace Corp
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Filing: 1955-11-09
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Granted: 1966-01-25
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Expires: 1975-11-09
Abstract
No abstract record available.
Inventors
- 👤 James W Cross
- 👤 Carl A Helber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:52
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
APPARATUS FOR AUTOMATICALLY GUIDING AN AIRCRAFT INCLUDING A RADAR, A PPI TUBE OPERATED BY THE RADAR FOR PRODUCING AN IMAGE OF THE TERRAIN OVER WHICH THE AIRCRAFT IS FLYING, A ROTARY ANTENNA FOR THE RADAR, MEANS FOR ROTATING THE ANTENNA, A PREVIOUSLY PREPARED MAP OF THE TERRAIN OVER WHICH THE AIRCRAFT IS INTENDED TO FLY, SAID IMAGE AND MAP BEING OF OPPOSITE CONTRAST AND TO SUBSTANTIALLY THE SAME SCALE AND ORIENTATION, MEANS FOR SUPERIMPOSING THE MAP AND IMAGE, MEANS FOR EFFECTING RELATIVE NUTATING MOVEMENT BETWEEN THE MAP AND IMAGE, PHOTOTUBE AND AMPLIFIER MEANS FOR DETERMINING THE EXTENT OF
Claim 2
Dependent Claim
98 words
APPARATUS FOR AUTOMATICALLY GUIDING AN AIRCRAFT INCLUDING A RADAR, A PPI TUBE OPERATED BY THE RADAR FOR PRODUCING AN IMAGE OF THE TERRAIN OVER WHICH THE AIRCRAFT IS FLYING, A ROTARY ANTENNA FOR THE RADAR, MEANS FOR ROTATING THE ANTENNA, A PREVIOUSLY PREPARED MAP OF THE TERRAIN OVER WHICH THE AIRCRAFT IS INTENDED TO FLY, SAID IMAGE AND MAP BEING OF OPPOSITE CONTRAST AND TO SUBSTANTIALLY THE SAME SCALE AND ORIENTATION, MEANS FOR SUPERIMPOSING THE MAP AND IMAGE, MEANS FOR EFFECTING RELATIVE NUTATING MOVEMENT BETWEEN THE MAP AND IMAGE, PHOTOTUBE AND AMPLIFIER MEANS FOR DETERMINING THE EXTENT OF
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |