FR528566A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Rolling sharpener for rotary hammers
Assignee: AMEDEE PAUL LOUIS ANTHELME JOS
•
Filing: 1920-12-14
•
Granted: 1921-11-15
•
Expires: 1940-12-14
Abstract
No abstract record available.
Inventors
- 👤 Amedee-Paul-Louis-An Croc
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-28 10:18
CPC Classifications
E; E21; E21D; E21D9/00; E21D9/10; E21D9/106
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.