Granted Patent
Utility
US 4,924,042 · App. 07/200,494
Railcar for renovating railways
Inventor:
Enrico Valditerra
Patented Case
View Patent ↗
Granted: May 8, 1990
Filed: May 31, 1988
Inventor
Enrico Valditerra
Assignee (at issue)
Enrico Valditerra
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.