Patent DE682079C successfully refreshed from Google Patents.
DE682079C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the production of pellets of cyclotetramethylene sulfones
Assignee: IG Farbenindustrie AG
•
Filing: 1937-01-23
•
Granted: 1939-10-07
•
Expires: 1957-01-23
Abstract
No abstract record available.
Inventors
- 👤 Dr Detlef Delfs
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-31 18:39
CPC Classifications
C; C07; C07D; C07D333/00; C07D333/02; C07D333/46; C07D333/48
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.