Patent US3419333A successfully refreshed from Google Patents.
US3419333A
Expired / Lapsed
US
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Runway visual range computer system
Assignee: IND RES ASSOCIATES Inc
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Filing: 1965-09-01
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Granted: 1968-12-31
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Expires: 1985-09-01
Abstract
No abstract record available.
Inventors
- 👤 Robert T Towner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:04
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/47; G01N21/49; G01N21/53; G01N21/538; G01S; G01S11/00; G01S11/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2991365A
Cited
US3230379A
Cited
US3204221A
Cited
US3174045A
Cited
US3290648A
Cited
US3299769A
Cited
US3350033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |