DE56256C
Active / In Force
DE
Two-sacred rings on steam boiler flame tubes
Assignee: A. HERING in Nürnberg, Eilgutstr. 7
•
Filing: —
•
Granted: —
•
Expires: —
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-31 01:39
CPC Classifications
F; F22; F22B; F22B7/00; F22B7/16; F22B7/20
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.