Patent FR810054A successfully refreshed from Google Patents.
FR810054A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Airplane with steerable propellers and vertical flight
Assignee: Duroux Alfred
•
Filing: 1936-07-23
•
Granted: 1937-03-15
•
Expires: 1956-07-23
Abstract
No abstract record available.
Inventors
- 👤 Duroux Alfred
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 23:13
CPC Classifications
B; B64; B64C; B64C29/00; B64C29/0008; B64C29/0016; B64C29/0033
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.