Granted Patent
Utility
US 5,634,696 · App. 08/547,929
Railway brake pipe bracket with access ports
Inventors:
James E. Hart, Gary M. Sich, Gregory L. Johnston
Patented Case
View Patent ↗
Granted: Jun 3, 1997
Filed: Oct 25, 1995
Inventors
James E. Hart
Gary M. Sich
Gregory L. Johnston
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.