Patent FR692022A successfully refreshed from Google Patents.
FR692022A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Special tube for heating or cooling and special application to superheating elements
Assignee: Raymond-Vital-Didier Martin
•
Filing: 1930-03-17
•
Granted: 1930-10-29
•
Expires: 1950-03-17
Abstract
No abstract record available.
Inventors
- 👤 Raymond-Vital-Didier Martin
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 17:42
CPC Classifications
F; F22; F22G; F22G7/00; F22G7/06; F22G7/065
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.