US2448712A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for controlling the operation of wing and tail-plane elements of an airplane
Assignee: Individual
•
Filing: 1944-02-26
•
Granted: 1948-09-07
•
Expires: 1964-02-26
Abstract
No abstract record available.
Inventors
- 👤 William J Hampshire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:23
CPC Classifications
B; B64; B64C; B64C3/00; B64C3/38; B64C3/44; B64C3/50; Y; Y02; Y02T; Y02T50/00; Y02T50/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2346464A
Cited
FR782527A
Cited
US1413553A
Cited
US1822976A
Cited
US1900688A
Cited
US1929566A
Cited
US1942688A
Cited
US1868748A
Cited
US1982242A
Cited
GB474065A
Cited
US2286150A
Cited
US2146014A
Cited
US2120717A
Cited
GB485069A
Cited
US2262968A
Cited
US2272664A
Cited
US2298040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |