Patent FR1004531A successfully refreshed from Google Patents.
FR1004531A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements made to the coupling devices of several machines, for example agricultural machinery, to a tractor
Assignee: Pierre-Louis-Paul Douniaux
•
Filing: 1947-05-06
•
Granted: 1952-03-31
•
Expires: 1967-05-06
Abstract
No abstract record available.
Inventors
- 👤 Pierre-Louis-Paul Douniaux
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 16:53
CPC Classifications
A; A01; A01B; A01B73/00; A01B73/02; A01B73/04; A01B73/044
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.