US2469403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three axis attitude and direction indicator
Assignee: Individual
•
Filing: 1946-06-05
•
Granted: 1949-05-10
•
Expires: 1966-06-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph B Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:33
CPC Classifications
G; G01; G01C; G01C23/00; G01C23/005
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB140482A
Cited
US1722109A
Cited
US1993864A
Cited
US2080490A
Cited
US1989826A
Cited
US2001038A
Cited
US2292732A
Cited
US2395250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-09 | 1952-11-08 | 1953-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-09 | 1956-11-08 | 1957-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-09 | 1960-11-08 | 1961-05-10 | $7700.00 | Window Closed / Lapsed |