FR694943A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device for cooling the valves of internal combustion engines
Assignee: Hugo Junkers
•
Filing: 1930-05-03
•
Granted: 1930-12-09
•
Expires: 1950-05-03
Abstract
No abstract record available.
Inventors
- 👤 Hugo Junkers
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-04 08:54
CPC Classifications
F; F01; F01L; F01L3/00; F01L3/12; F01L3/16; F01P; F01P1/00; F01P1/06; F01P1/08
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.