US3486720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous slot forming leading edge slats for cranked wings
Assignee: Boeing Co
•
Filing: 1967-12-07
•
Granted: 1969-12-30
•
Expires: 1987-12-07
Abstract
No abstract record available.
Inventors
- 👤 Henry M Seglem
- 👤 John K Wimpress
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:39
CPC Classifications
B; B64; B64C; B64C9/00; B64C9/14; B64C9/22; B64C9/24; Y; Y02; Y02T; Y02T50/00; Y02T50/30; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |