DE634032C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the production of sulfuric acid esters from ester or acid amide-type condensation products
Assignee: IG Farbenindustrie AG
•
Filing: 1929-01-26
•
Granted: 1936-08-18
•
Expires: 1949-01-26
Abstract
No abstract record available.
Inventors
- 👤 Dr Joseph Nuesslein
- 👤 Dr Heinrich Ulrich
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-31 00:49
CPC Classifications
C; C09; C09K; C09K23/00; C09K23/22; C09K23/24; C07; C07C; C07C305/00; C07C305/02; C07C305/04; C07C305/06; C07C311/00; C07C311/15
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.