Patent DE652990C successfully refreshed from Google Patents.
DE652990C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Device for the preparation of malleable masses, especially ceramic and rubber masses, with two interlocking, wide-pitched screws
Assignee: IG Farbenindustrie AG
•
Filing: 1935-07-26
•
Granted: 1937-11-13
•
Expires: 1955-07-26
Abstract
No abstract record available.
Inventors
- 👤 Dr Siegfried Kiesskalt
- 👤 Dr Hans Tampke
- 👤 Dr Ernst Weingaertner
- 👤 Dr Karl Winnacker
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-05 10:20
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/22; B30B11/24; B30B11/243; B28; B28B; B28B3/00; B28B3/20; B28B3/22; B28B3/222; B28B3/224
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.