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US3069906A
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Angle-of-attack determining device
Assignee: Hrb-Singer Inc
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Filing: 1959-05-06
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Granted: 1962-12-25
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Expires: 1979-05-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Phillip F Eiland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:38
CPC Classifications
B; B64; B64D; B64D43/00; B64D43/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2352955A
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FR376027A
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FR710520A
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US2029700A
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US2299077A
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US2294282A
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US2645123A
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US2788644A
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US2834208A
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US2832217A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |