Patent FR753185A successfully refreshed from Google Patents.
FR753185A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Process for preparing anthraquinone series tank dyes
Assignee: IG Farbenindustrie AG
•
Filing: 1933-03-27
•
Granted: 1933-10-09
•
Expires: 1953-03-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-01 12:05
CPC Classifications
C; C09; C09B; C09B5/00; C09B5/24; C09B5/2409; C09B5/2436
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.