DE617841C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the extraction of oxygen-rich mixtures from air
Assignee: Linde GmbH
•
Filing: 1934-05-18
•
Granted: 1935-08-29
•
Expires: 1954-05-18
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-30 04:21
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/04; F25J3/04248; F25J3/04284; F25J3/0429; F25J3/04303; F25J3/04624; F25J2200/00; F25J2200/02; F25J2215/00; F25J2215/50
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.