Patent DE730182C successfully refreshed from Google Patents.
DE730182C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the preparation of N- (aminoalkyl) pyrrolidones
Assignee: IG Farbenindustrie AG
•
Filing: 1939-08-22
•
Granted: 1943-01-07
•
Expires: 1959-08-22
Abstract
No abstract record available.
Inventors
- 👤 Dr Georg V Bank
- 👤 Dr Curt Schuster
- 👤 Dr Alois Seib
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-24 06:36
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/18; C07D207/22; C07D207/24; C07D207/26; C07D207/263; C07D207/27
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.