DE537367C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for increasing the melting point of novolaks and the oil-soluble compounds prepared from them with natural resin acids
Assignee: ERICH ASSER DR
•
Filing: 1928-12-14
•
Granted: 1931-11-02
•
Expires: 1948-12-14
Abstract
No abstract record available.
Inventors
- 👤 Dr Erich Karsten
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-28 23:36
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; C08G8/34
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.