Patent FR641132A successfully refreshed from Google Patents.
FR641132A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Illuminated arrow indicating the direction of the wind, its speed and facilitating by its lighting, the night landing of seaplanes
Assignee: Emilien Lieutaud
•
Filing: 1927-09-07
•
Granted: 1928-07-28
•
Expires: 1947-09-07
Abstract
No abstract record available.
Inventors
- 👤 Emilien Lieutaud
- 👤 Jean-Henri Desamblanc
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 21:32
CPC Classifications
B; B64; B64F; B64F1/00; B64F1/18; B64F1/20
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.