Granted Patent
Utility
US 4,771,529 · App. 07/124,669
Apparatus for tramming railway trucks
Inventors:
Keith L. Jackson, Richard B. Polley, Dallas L. Schmitt
Patented Case
View Patent ↗
Granted: Sep 20, 1988
Filed: Nov 24, 1987
Inventors
Keith L. Jackson
Richard B. Polley
Dallas L. Schmitt
Assignee (at issue)
GSI Engineering, 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.