FR435929A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvement to automatic steam check valves
Assignee: CHATEL ET SOLMS SOC
•
Filing: 1911-11-03
•
Granted: 1912-03-13
•
Expires: 1931-11-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-01 22:08
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04
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.