CH217478A
Expired / Lapsed
CH
⏱️ 0.0 years remaining
Process for the preparation of acrylonitrile.
Assignee: Ig Farbenindustrie Ag
•
Filing: 1940-06-19
•
Granted: —
•
Expires: 1960-06-19
Abstract
No abstract record available.
Inventors
- 👤 Aktiengesellsc Farbenindustrie
Bibliographic Details
Application Number
—
Jurisdiction
CH
Data Source
google_patents
Last Synchronized
2026-10-23 16:40
CPC Classifications
C; C07; C07C; C07C253/00; C07C253/08; C07C253/12
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.