Patent DE897417C successfully refreshed from Google Patents.
← Back to Patent Explorer
DE897417C Expired / Lapsed DE ⏱️ 0.0 years remaining

Heat exchanger

Assignee: Waagner Biro AG
•
Filing: 1951-11-11
•
Granted: 1953-11-19
•
Expires: 1971-11-11
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Stefan Dipl-Ing Guczky
  • 👤 Roland Dipl-Ing Kemmetmueller

Bibliographic Details

Application Number —
Jurisdiction DE
Data Source google_patents
Last Synchronized 2026-11-08 19:53
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/12; F28F1/14; F28F1/22; F28F13/00; F28F13/06

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.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag