US2811788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Simulated radio navigation apparatus
Assignee: Curtiss Wright Corp
•
Filing: 1951-08-03
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Granted: 1957-11-05
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Expires: 1971-08-03
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Gallo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 04:11
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2465624A
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US2475314A
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US2471315A
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US2560528A
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US2497216A
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US2560527A
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US2685747A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |