DE372965C
Expired / Lapsed
DE
⏱️ 0.0 years remaining
Device for automatic draining of engine coolant when there is a risk of frost
Assignee: CHRISTIAN KRAUSEN
•
Filing: —
•
Granted: 1923-04-06
•
Expires: 1940-04-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
DE
Data Source
google_patents
Last Synchronized
2026-10-29 11:24
CPC Classifications
F; F01; F01P; F01P11/00; F01P11/14; F01P11/20
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.