Patent DE678098C successfully refreshed from Google Patents.
DE678098C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Periodic absorption machine
Assignee: Siemens Schuckertwerke AG
•
Filing: 1937-07-29
•
Granted: 1939-07-08
•
Expires: 1957-07-29
Abstract
No abstract record available.
Inventors
- 👤 Dipl-Ing Ernst Sprengel
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-05 01:52
CPC Classifications
F; F25; F25B; F25B17/00; F25B17/08; F25B49/00; F25B49/04; F25B49/046
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.