Patent · US Expired

Rails

US5645653A · kind A · utility

9Cited by
10References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 22, 1996
Grant dateJul 8, 1997
Priority date—
Expiry dateFeb 22, 2016

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC21D2211/008
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

A rail for use in a railway which has in section, a head having a traffic carrying surface and a foot, wherein the head comprising a traffic carrying surface is composed of low carbon martensite.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.