Patent DE658649C successfully refreshed from Google Patents.
DE658649C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Rotary drum filter with flat filter cells
Assignee: BWS Technologie GmbH
•
Filing: —
•
Granted: 1938-04-07
•
Expires: 1955-04-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-26 19:45
CPC Classifications
B; B01; B01D; B01D33/00; B01D33/06; B01D33/067; B01D33/073; B01D33/09; B01D33/11; B01D33/13
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.