FR906181A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Process for preparing heterocyclic compounds
Assignee: IG Farbenindustrie AG
•
Filing: 1944-07-31
•
Granted: 1945-12-26
•
Expires: 1964-07-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-23 17:20
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/06; C07D239/08; C07D239/10; C07D263/00; C07D263/02; C07D263/08; C07D263/16; C07D263/18; C07D263/20; C07D263/22; C07D265/00; C07D265/04; C07D265/06; C07D265/08; C07D265/10
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.