DE897566C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Pipe heat exchangers, in particular high pressure preheaters
Assignee: Atlas Werke AG
•
Filing: 1951-12-30
•
Granted: 1953-11-23
•
Expires: 1971-12-30
Abstract
No abstract record available.
Inventors
- 👤 Johannes Wohlgemuth
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-23 11:22
CPC Classifications
F; F22; F22D; F22D1/00; F22D1/006
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.