Granted Patent
Utility
US 5,579,013 · App. 08/238,772
Mobile tracking unit capable of detecting defective conditions in railway vehicle wheels and railtracks
Inventors:
John Erik Hershey, Kenneth Brakeley Welles, II
Patented Case
View Patent ↗
Granted: Nov 26, 1996
Filed: May 5, 1994
Inventors
John Erik Hershey
Kenneth Brakeley Welles, II
Assignee (at issue)
General Electric Company
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.