US2425016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hangar door operating mechanism
Assignee: Individual
•
Filing: 1944-12-19
•
Granted: 1947-08-05
•
Expires: 1964-12-19
Abstract
No abstract record available.
Inventors
- 👤 Edgar R Weaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:12
CPC Classifications
E; E05; E05F; E05F15/00; E05F15/60; E05F15/603; E05F15/632; E05F15/635; E05F17/00; E05F17/004; E05Y; E05Y2201/00; E05Y2201/60; E05Y2201/622; E05Y2201/644; E05Y2201/656; E05Y2201/676; E05Y2201/71; E05Y2201/722; E05Y2400/00; E05Y2400/10; E05Y2400/40; E05Y2400/41; E05Y2400/415; E05Y2900/00; E05Y2900/10; E05Y2900/108
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-04 | 1951-02-03 | 1951-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-04 | 1955-02-03 | 1955-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-04 | 1959-02-03 | 1959-08-05 | $7700.00 | Window Closed / Lapsed |