FR557276A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Automatic coupling device for railway wagons or others
Assignee: Maurice Marcel
•
Filing: 1922-07-20
•
Granted: 1923-08-06
•
Expires: 1942-07-20
Abstract
No abstract record available.
Inventors
- 👤 Maurice Marcel
- 👤 Gaston Robert
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-06 19:40
CPC Classifications
B; B61; B61G; B61G5/00; B61G5/06
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.