DE844630C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Filling compound for regenerative heat exchangers
Assignee: Ljungstroms Angturbin AB
•
Filing: 1949-07-10
•
Granted: 1952-07-24
•
Expires: 1969-07-10
Abstract
No abstract record available.
Inventors
- 👤 Sven Holm
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-11-02 09:16
CPC Classifications
F; F28; F28D; F28D19/00; F28D19/04; F28D19/041; F28D19/042; F28D19/044; F28G; F28G9/00; F28G9/005; Y; Y10; Y10S; Y10S165/00; Y10S165/009; Y10S165/01; Y10S165/011; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49357
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE723175C
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.