← Back to Patent Explorer
FR621244A Expired / Lapsed FR ⏱️ 0.0 years remaining

Lubricating the valve gear of top-operated combustion engines

Assignee: Chen Ku
•
Filing: 1926-09-10
•
Granted: 1927-05-07
•
Expires: 1946-09-10
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Chen Ku

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-11-01 11:27
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/30; F01M; F01M9/00; F01M9/10; F01M9/106; F01L2810/00; F01L2810/02

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.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag