FR1370084A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Rotary tool for cutting coal, ore or rock and mining machine making use of such a tool
Assignee: Houilleres du Bassin du Nord et du Pas de Calais
•
Filing: 1963-07-09
•
Granted: 1964-08-21
•
Expires: 1983-07-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-31 20:12
CPC Classifications
E; E21; E21D; E21D9/00; E21D9/10; E21D9/1006; E21D9/1013; E21D9/102
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.