Patent DE718685C successfully refreshed from Google Patents.
DE718685C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the preparation of amino acid amidines
Assignee: BASF Schweiz AG
•
Filing: 1939-04-19
•
Granted: 1942-03-18
•
Expires: 1959-04-19
Abstract
No abstract record available.
Inventors
- 👤 Dr Willi Klarer
- 👤 Dr Karl Miescher
- 👤 Dr Ernst Urech
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-31 19:55
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07D233/00; C07D233/04; C07D233/20; C07D233/24
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.