Patent US20020072767A1 successfully refreshed from Google Patents.
FR792921A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to electric welders
Assignee: Compteurs Schlumberger SA
•
Filing: 1935-07-25
•
Granted: 1936-01-13
•
Expires: 1955-07-25
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 03:55
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/24; B23K11/26
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.