Patent US2557522A successfully refreshed from Google Patents.
US2557522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerodynes equipped with reaction jet propulsion means
Assignee: Societe Nationale des Constructions Aeronautiques du Sud Est SNCASE
•
Filing: 1947-05-28
•
Granted: 1951-06-19
•
Expires: 1967-05-28
Abstract
No abstract record available.
Inventors
- 👤 Vautier Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:26
CPC Classifications
B; B64; B64C; B64C21/00; B64C21/01; B64C2230/00; B64C2230/04; Y; Y02; Y02T; Y02T50/00; Y02T50/10
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1375601A
Cited
GB209435A
Cited
US1986064A
Cited
US2041792A
Cited
GB512064A
Cited
GB518663A
Cited
FR866952A
Cited
US2401941A
Cited
US2380535A
Cited
US2390161A
Cited
US2383385A
Cited
US2477637A
Cited
GB568667A
Cited
US2412646A
Cited
US2503973A
Cited
US2431592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |