Patent DE874447C successfully refreshed from Google Patents.
DE874447C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the preparation of 5-thione-1,2-dithiols
Assignee: Individual
•
Filing: 1944-08-22
•
Granted: 1953-04-23
•
Expires: 1964-08-22
Abstract
No abstract record available.
Inventors
- 👤 Bruno Dr Boettcher
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-07 14:22
CPC Classifications
C; C07; C07D; C07D339/00; C07D339/02; C07D339/04
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.