Patent US3045233A successfully refreshed from Google Patents.
US3045233A
Expired / Lapsed
US
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Frequency modulation radio altimeter
Assignee: TDK Micronas GmbH
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Filing: 1958-01-21
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Granted: 1962-07-17
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Expires: 1978-01-21
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Katz
- 👤 Robert T Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:09
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)
US2011392A
Cited
US2371988A
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US2423088A
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US2405134A
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US2537593A
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US2726383A
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US2776426A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |