Patent US2837127A successfully refreshed from Google Patents.
US3069906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Angle-of-attack determining device
Assignee: Hrb-Singer Inc
•
Filing: 1959-05-06
•
Granted: 1962-12-25
•
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 01:54
CPC Classifications
B; B64; B64D; B64D43/00; B64D43/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2352955A
Cited
FR376027A
Cited
FR710520A
Cited
US2029700A
Cited
US2299077A
Cited
US2294282A
Cited
US2645123A
Cited
US2788644A
Cited
US2834208A
Cited
US2832217A
Cited
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 |