FR1006085A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device for collecting and removing dust from rock drilling
Assignee: Anton Lobbert
•
Filing: 1947-11-13
•
Granted: 1952-04-18
•
Expires: 1967-11-13
Abstract
No abstract record available.
Inventors
- 👤 Anton Lobbert
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-03 06:10
CPC Classifications
E; E21; E21B; E21B21/00; E21B21/01; E21B21/015
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.