DE687600C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Pull-through furnace, especially tower furnace with heat exchange
Assignee: Siemens Schuckertwerke AG
•
Filing: 1936-09-05
•
Granted: 1940-02-01
•
Expires: 1956-09-05
Abstract
No abstract record available.
Inventors
- 👤 Dr-Ing Theodor Stassinet
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-06 17:48
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/52; C21D9/54; C21D9/56
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.