US3383772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotational attitude indicator
Assignee: ACCURMATIC CORP
•
Filing: 1966-08-25
•
Granted: 1968-05-21
•
Expires: 1986-08-25
Abstract
No abstract record available.
Inventors
- 👤 Howard P Gardner
- 👤 Baron G Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:19
CPC Classifications
G; G01; G01C; G01C9/00; G01C9/18; G01C9/24; G01C9/34
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US967258A
Cited
US2543139A
Cited
US2752693A
Cited
US2816368A
Cited
US2767483A
Cited
US2871573A
Cited
US3269729A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |