Patent DE708678C successfully refreshed from Google Patents.
DE708678C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the production of carboduemides
Assignee: Deutsche Hydrierwerke AG
•
Filing: 1937-03-28
•
Granted: 1941-07-29
•
Expires: 1957-03-28
Abstract
No abstract record available.
Inventors
- 👤 Dr Winfrid Hentrich
- 👤 Dr Richard Hueter
- 👤 Dr Heinz-Joachim Engelbrecht
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-04 11:16
CPC Classifications
—
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.