US2614640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor blade support
Assignee: RTX Corp
•
Filing: 1951-02-01
•
Granted: 1952-10-21
•
Expires: 1971-02-01
Abstract
No abstract record available.
Inventors
- 👤 Michel D Buivid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:26
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/32; B64C27/322
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1980169A
Cited
US1960359A
Cited
US2151215A
Cited
US2396038A
Cited
US2465674A
Cited
US2481747A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |