FR1147728A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Device for detecting the passage of wagon wheels on a rail
Assignee: Compteurs Schlumberger SA
•
Filing: 1956-04-16
•
Granted: 1957-11-28
•
Expires: 1976-04-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-01 20:36
CPC Classifications
B; B61; B61L; B61L1/00; B61L1/16; B61L1/163; B61L1/165; B61L13/00; B61L13/04; B61L13/047
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.