US3020649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Simulated radio navigational aids marker receiver
Assignee: Curtiss Wright Corp
•
Filing: 1958-10-28
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Granted: 1962-02-13
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Expires: 1978-10-28
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Samson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:55
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02; G01S1/022; G01S1/028; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2366603A
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US2475314A
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US2560528A
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US2791842A
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US2938277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |