US2524329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic wing control
Assignee: Individual
•
Filing: 1949-02-07
•
Granted: 1950-10-03
•
Expires: 1969-02-07
Abstract
No abstract record available.
Inventors
- 👤 Walter B Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:32
CPC Classifications
E; E01; E01H; E01H5/00; E01H5/04; E01H5/06; E02; E02F; E02F3/00; E02F3/04; E02F3/76; E02F3/80; E02F3/84; E02F3/844
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1624839A
Cited
US1791942A
Cited
US1853939A
Cited
US1956007A
Cited
US2095096A
Cited
US2193532A
Cited
US2144698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-02 | 1954-04-03 | 1954-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-02 | 1958-04-03 | 1958-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-02 | 1962-04-03 | 1962-10-03 | $7700.00 | Window Closed / Lapsed |