FR840360A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to propeller devices providing traction or propulsion of locomotive vehicles
Assignee: MECANIQUE IND ATEL
•
Filing: 1937-12-30
•
Granted: 1939-04-25
•
Expires: 1957-12-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 00:24
CPC Classifications
B; B64; B64D; B64D35/00; B64D35/04; B64D35/06
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.