DE1056147B
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Device for the automatic start-up and shutdown of forced flow boilers
Assignee: DUERRWERKE AG
•
Filing: 1956-12-08
•
Granted: —
•
Expires: 1976-12-08
Abstract
No abstract record available.
Inventors
- 👤 Dipl-Ing Klaus Knizia
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-09 14:28
CPC Classifications
F; F22; F22G; F22G5/00; F22B; F22B35/00; F22B35/06; F22B35/10; F22B35/101; F22G5/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
CH209430A
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.