US3501250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor hub
Assignee: Boeing Co
•
Filing: 1968-03-22
•
Granted: 1970-03-17
•
Expires: 1988-03-22
Abstract
No abstract record available.
Inventors
- 👤 Victor S Mosinskis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:54
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/32; B64C27/35
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2261337A
Cited
US2557338A
Cited
US2815821A
Cited
US3106965A
Cited
US3310119A
Cited
US3292712A
Cited
US3282350A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |