FR747904A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
weighted curtain electrode for electrostatic filters
Assignee: Expl Des Procedes Lurgi SA D
•
Filing: 1932-12-21
•
Granted: 1933-06-26
•
Expires: 1952-12-21
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-28 18:20
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/86
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.