Patent DE864867C successfully refreshed from Google Patents.
DE864867C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the preparation of N-substituted monoethylene ureas or their homologues
Assignee: Hoechst AG
•
Filing: 1940-07-24
•
Granted: 1953-01-29
•
Expires: 1960-07-24
Abstract
No abstract record available.
Inventors
- 👤 Theodor Dr Jacobs
- 👤 Ludwig Dr Orthner
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-08 17:24
CPC Classifications
C; C07; C07D; C07D203/00; C07D203/04; C07D203/06; C07D203/16; C07D203/20; C07C; C07C273/00; C07C273/18; C07C273/1809; C07D203/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE681520C
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.