US2445343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for airplanes
Assignee: Individual
•
Filing: 1943-04-16
•
Granted: 1948-07-20
•
Expires: 1963-04-16
Abstract
No abstract record available.
Inventors
- 👤 Thomas D Tyra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:11
CPC Classifications
B; B64; B64C; B64C13/00; B64C13/24; B64C13/38; B64C13/50; B64C13/507
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1351538A
Cited
US1365347A
Cited
US1710399A
Cited
GB321851A
Cited
US1959177A
Cited
US1896999A
Cited
FR803196A
Cited
US2139965A
Cited
US2140037A
Cited
US2176807A
Cited
US2295159A
Cited
US2227375A
Cited
US2297412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-20 | 1952-01-19 | 1952-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-20 | 1956-01-19 | 1956-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-20 | 1960-01-19 | 1960-07-20 | $7700.00 | Window Closed / Lapsed |