Patent DE963674C successfully refreshed from Google Patents.
DE963674C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Process for the production of melts for the production of blowing agents
Assignee: Dow Produktions und Vertriebs GmbH and Co OHG
•
Filing: 1955-02-06
•
Granted: 1957-05-09
•
Expires: 1975-02-06
Abstract
No abstract record available.
Inventors
- 👤 Dr Franz Achilles
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-02 16:55
CPC Classifications
C; C06; C06B; C06B21/00; C06B21/0033; C06B21/005
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1967913A
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.