DE903578C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the preparation of new 3, 5-dioxo-pyrazolidines substituted in the 4-position
Assignee: Novartis AG
•
Filing: 1951-11-01
•
Granted: 1954-02-08
•
Expires: 1971-11-01
Abstract
No abstract record available.
Inventors
- 👤 Dr Franz Haefliger
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-04 19:34
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D231/28; C07D231/30; C07D231/32; C07D231/36
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.