FR868527A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device for checking the tightness of riveted or welded seams made inaccessible by a coating
Assignee: MATERIEL POUR L IND DU PETROLE
•
Filing: 1939-07-08
•
Granted: 1942-01-05
•
Expires: 1959-07-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-08 23:51
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/26; G01M3/28; G01M3/2853
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.