Patent US2686302A successfully refreshed from Google Patents.
US2686302A
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US
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Radio altimeter
Assignee: International Standard Electric Corp
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Filing: 1950-12-29
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Granted: 1954-08-10
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Expires: 1970-12-29
Abstract
No abstract record available.
Inventors
- 👤 Capelli Marino Pompeo Giovanni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:00
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/32; G01S13/34; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2247662A
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US2423644A
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US2222587A
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US2261272A
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US2422133A
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US2557864A
Cited
US2510710A
Cited
US2568090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |