Patent FR678338A successfully refreshed from Google Patents.
FR678338A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Single spar wing for airplanes
Assignee: Willy Messerschmitt
•
Filing: 1929-07-12
•
Granted: 1930-03-21
•
Expires: 1949-07-12
Abstract
No abstract record available.
Inventors
- 👤 Willy Messerschmitt
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-29 17:58
CPC Classifications
B; B64; B64C; B64C3/00; B64C3/18
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.