FR769810A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Process for the preparation of diazonium compounds of 4-aminodiarylamines
Assignee: IG Farbenindustrie AG
•
Filing: 1934-03-07
•
Granted: 1934-09-03
•
Expires: 1954-03-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 10:31
CPC Classifications
C; C09; C09B; C09B67/00
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.