DE696591C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the production of dyes
Assignee: IG Farbenindustrie AG
•
Filing: 1937-10-14
•
Granted: 1940-09-25
•
Expires: 1957-10-14
Abstract
No abstract record available.
Inventors
- 👤 Otto Bayer
- 👤 Dr Hans Hoyer
- 👤 Dr Fritz Nadler
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-29 20:10
CPC Classifications
C; C09; C09B; C09B47/00; C09B47/04; C09B47/08; C09B47/24; C09B47/26
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.