FR796067A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Silencers for pneumatic jackhammers and perforators
Assignee: Charles Mills Newton
•
Filing: 1935-10-09
•
Granted: 1936-03-28
•
Expires: 1955-10-09
Abstract
No abstract record available.
Inventors
- 👤 Charles Mills Newton
- 👤 Harold Whitelock Dermer
- 👤 James Mason
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-09 10:40
CPC Classifications
E; E21; E21B; E21B1/00; E21B1/12; E21B1/24; E21B1/30
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.