Patent FR1122234A successfully refreshed from Google Patents.
FR1122234A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvement of the filtering system of dust extractors
Assignee: Lucien-Julien-Alfred Pechard
•
Filing: 1954-11-30
•
Granted: 1956-09-04
•
Expires: 1974-11-30
Abstract
No abstract record available.
Inventors
- 👤 Lucien-Julien-Alfred Pechard
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-04 12:19
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/14; A47L9/1427
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.