US2620622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reverse thrust arrangement for braking jet-propelled aircraft
Assignee: Svenska Turbinfabriks Ljungstrom AB
•
Filing: 1945-12-17
•
Granted: 1952-12-09
•
Expires: 1965-12-17
Abstract
No abstract record available.
Inventors
- 👤 Lundberg Bo Klas Oskar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:39
CPC Classifications
F; F02; F02K; F02K1/00; F02K1/54; F02K1/56; F02K1/60
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1308997A
Cited
GB190514631A
Cited
US1344518A
Cited
US1493280A
Cited
GB171600A
Cited
US1572812A
Cited
US1779168A
Cited
US2024274A
Cited
US2402065A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |