DE4514C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Method and apparatus for drying brown coals for the manufacture of briquettes, using superheated steam
Assignee: l. ramdohr in Halle a. S
•
Filing: 1878-08-23
•
Granted: 1879-04-03
•
Expires: 1898-08-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-27 08:47
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/12
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.