Granted Patent
Utility
US 5,241,913 · App. 07/898,709
Reinforced bolster for a railroad car truck
Inventor:
Hans B. Weber
Patented Case
View Patent ↗
Granted: Sep 7, 1993
Filed: Jun 15, 1992
Inventor
Hans B. Weber
Assignee (at issue)
National Casting Incorporated
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.