DE442558C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Heating pipe steam generator, especially for high pressure
Assignee: WILHELM MATHIESEN DR
•
Filing: —
•
Granted: 1927-04-04
•
Expires: 1944-04-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-01 12:29
CPC Classifications
F; F22; F22B; F22B9/00
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.