FR990308A
Expired / Lapsed
FR
⏱️ 0.0 years remaining
Improvements to devices for determining the geometric layout of the rails of a railway track
Assignee: SNCF Mobilites
•
Filing: 1949-05-04
•
Granted: 1951-09-20
•
Expires: 1969-05-04
Abstract
No abstract record available.
Inventors
- 👤 Andre-Ernest Mauzin
Bibliographic Details
Application Number
—
Jurisdiction
FR
Data Source
google_patents
Last Synchronized
2026-11-05 12:51
CPC Classifications
B; B61; B61K; B61K9/00; B61K9/08
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.