FR870533A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Apparatus for clarifying washing water and sewage
Assignee: Westfalia Dinnendahl Groeppel AG
•
Filing: 1941-03-03
•
Granted: 1942-03-13
•
Expires: 1961-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-01 03:24
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/18
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.