FR670855A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device for cooling the ash of pulverized fuel fireplaces
Assignee: Vapeur & Force Motrice Soc
•
Filing: 1929-03-05
•
Granted: 1929-12-05
•
Expires: 1949-03-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-29 03:05
CPC Classifications
F; F23; F23J; F23J1/00; F23J2700/00; F23J2700/002
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.