Patent FR489569A successfully refreshed from Google Patents.
FR489569A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Distribution valve for internal combustion engines and, in general, for all engines in which the motive energy is produced inside the engine cylinders
Assignee: CARLO CASANA
•
Filing: 1917-10-12
•
Granted: 1919-02-20
•
Expires: 1937-10-12
Abstract
No abstract record available.
Inventors
- 👤 Carlo Casana
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-10-30 15:42
CPC Classifications
F; F01; F01L; F01L5/00; F01L5/02
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.