Patent FR988840A successfully refreshed from Google Patents.
← Back to Patent Explorer
FR988840A Expired / Lapsed FR ⏱️ 0.0 years remaining

Improvements to shut-off valves used in compressed air braking systems

Assignee: Compagnie des Freins et Signaux Westinghouse SA
•
Filing: 1944-01-19
•
Granted: 1951-08-31
•
Expires: 1964-01-19
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

No inventors recorded.

Bibliographic Details

Application Number —
Jurisdiction FR
Data Source google_patents
Last Synchronized 2026-11-04 10:15
CPC Classifications
B; B60; B60T; B60T17/00; B60T17/04; B60T17/043; F; F16; F16K; F16K5/00; F16K5/06; F16K5/0605

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