Patent US6470382B1 successfully refreshed from Google Patents.
FR339748A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to the pistons of internal combustion engines
Assignee: Individual
•
Filing: 1904-01-20
•
Granted: 1904-06-17
•
Expires: 1924-01-20
Abstract
No abstract record available.
Inventors
- 👤 Louis Renault
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-02 05:27
CPC Classifications
F; F16; F16J; F16J9/00; F16J9/12; F16J9/20
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.