Patent US2622900A successfully refreshed from Google Patents.
Patent US3463203A successfully refreshed from Google Patents.
Patent FR1038050A successfully refreshed from Google Patents.
FR1038050A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Slaughter process, in particular for the slaughter of coal in mines
Assignee: Houilleres du Bassin du Nord et du Pas de Calais
•
Filing: 1951-06-04
•
Granted: 1953-09-24
•
Expires: 1971-06-04
Abstract
No abstract record available.
Inventors
- 👤 Jean Binaut
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 13:10
CPC Classifications
E; E21; E21C; E21C41/00; E21C41/16; E21C41/18
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.