DE662923C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Signal device for electrically heated devices with temperature controllers, especially boiling water storage tanks
Assignee: THEODOR STIEBEL DIPL ING DR
•
Filing: 1933-07-20
•
Granted: 1938-07-25
•
Expires: 1953-07-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-23 11:40
CPC Classifications
F; F24; F24H; F24H9/00; F24H9/20; F24H9/2007; F24H9/2014; F24H9/2021; F24H15/00; F24H15/30; F24H15/395
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.