DE732085C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Device for the production of filters
Assignee: Individual
•
Filing: 1940-02-20
•
Granted: 1943-02-20
•
Expires: 1960-02-20
Abstract
No abstract record available.
Inventors
- 👤 Manfred Von Ardenne
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-31 08:43
CPC Classifications
B; B01; B01D; B01D67/00; B01D67/0002; B01D67/0023; B01D67/0032; H; H01; H01J; H01J37/00; H01J37/02; H01J37/04; H01J37/08; H01J37/10; H01J37/12; H01J37/30; H01J37/31
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.