DE435574C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for purifying gases by electromechanical means
Assignee: BERNHARD CHRISTOFFELS
•
Filing: 1924-02-12
•
Granted: 1927-03-11
•
Expires: 1944-02-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-26 08:35
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/02; B03C3/04; B03C3/10
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.