Granted Patent
Utility
US 4,753,403 · App. 06/938,934
Railroad track mounting arrangement
Inventor:
James P. Chew
Patented Case
View Patent ↗
Granted: Jun 28, 1988
Filed: Dec 8, 1986
Inventor
James P. Chew
Assignee (at issue)
American Standard Inc.
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.