FR880486A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Filter refinements
Assignee: CHEMA Manufacturing Co Ltd
•
Filing: 1940-05-23
•
Granted: 1943-03-26
•
Expires: 1960-05-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 14:24
CPC Classifications
B; B01; B01D; B01D25/00; B01D25/22; B01D25/24
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.