ZNYPWMXMDYXLEI-UHFFFAOYSA-N 0.000 claims description 12
238000004519 manufacturing process Methods 0.000 claims abstract description 20.210000001699 lower leg Anatomy 0.000 claims abstract description 26.238000000034 method Methods 0.000 claims abstract description 48.239000002184 metal Substances 0.000 claims abstract description 56.229910052751 metal Inorganic materials 0.000 claims abstract description 56.Assignors: NEWELL, HAYDEN W Priority to US14/178,873 priority patent/US8875556B2/en Application granted granted Critical Publication of US8683842B1 publication Critical patent/US8683842B1/en Status Expired - Fee Related legal-status Critical Current Adjusted expiration legal-status Critical Links Assignors: NEWELL, HAYDEN W Assigned to NORFOLK SOUTHERN CORPORATION reassignment NORFOLK SOUTHERN CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority claimed from US31705410P external-priority Application filed by Norfolk Southern Corp filed Critical Norfolk Southern Corp Priority to US13/069,883 priority Critical patent/US8683842B1/en Assigned to NORFOLK SOUTHERN CORPORATION reassignment NORFOLK SOUTHERN CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Original Assignee Norfolk Southern Corp Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Newell Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related, expires Application number US13/069,883 Inventor Hayden W.
Railroad spike steel type pdf#
Google Patents Railroad spikes and methods of making the sameĭownload PDF Info Publication number US8683842B1 US8683842B1 US13/069,883 US201113069883A US8683842B1 US 8683842 B1 US8683842 B1 US 8683842B1 US 201113069883 A US201113069883 A US 201113069883A US 8683842 B1 US8683842 B1 US 8683842B1 Authority US United States Prior art keywords railroad spike metal blank railroad spike metal Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.
Google Patents US8683842B1 - Railroad spikes and methods of making the same US8683842B1 - Railroad spikes and methods of making the same
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