Patent US3403254A successfully refreshed from Google Patents.
US3403254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glide path approach system for landing aircraft utilizing nuclear radiation
Assignee: Industrial Nucleonics Corp
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Filing: 1964-04-06
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Granted: 1968-09-24
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Expires: 1984-04-06
Abstract
No abstract record available.
Inventors
- 👤 Angelo J Campanella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:36
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
118 words
APPARATUS FOR PROVIDING FLIGHT INFORMATION DURING THE LANDING OF AN AIRCRAFT, COMPRISING, MEANS DISPOSED ON THE GROUND FOR PRODUCING A RADIATION BEACON COMPRISING AT LEAST TWO SOURCES SPACED APART TO RADIATE PENETRATIVE NUCLEAR RADIATION TO FORM A REGION OF INTERSECTING RADIATION ALONG A PREDETERMINED GLIDE PATH BETWEEN SAID SOURCES, AN AIRCRAFT, MEANS INSTALLED ON SAID AIRCRAFT FOR CONTINUOUSLY MEASURING BETWEEN SAID SOURCES AS SAID AIRCRAFT MOVES BETWEEN SAID SOURCES AND PRODUCING A SIGNAL RESPONSIVE TO THE DEVIATION OF SAID AIRCRAFT FROM A PREDETERMINED GLIDE PATH ALTITUDE AND A SIGNAL RESPONSIVE TO THE DEVIATION OF SAID AIRCRAFT FROM A PREDETERMINED GLIDE PATH HORIZONTAL POSITION BETWEEN SAID SOURCES, AND MEANS REPONSIVE TO SAID SIGNALS FOR INDICATING POSITION OF SAID AIRCRAFT.
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) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |