FR879224A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Stamped sheet for heat exchange plates and its manufacturing process
Assignee: AHLBORN E AG
•
Filing: 1942-02-10
•
Granted: 1943-02-17
•
Expires: 1962-02-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 18:17
CPC Classifications
F; F28; F28F; F28F3/00; F28F3/08; F28F3/10
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.