DE658254C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Concentrating radium compounds
Assignee: GEA Group AG
•
Filing: 1934-04-20
•
Granted: 1938-03-25
•
Expires: 1954-04-20
Abstract
No abstract record available.
Inventors
- 👤 Sven Robert Agnar Engstroem
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-05 18:02
CPC Classifications
C; C01; C01F; C01F13/00
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.