Granted Patent
Utility
US 4,487,060 · App. 06/495,714
Railway brake pressure monitor
Inventor:
Richard J. Pomeroy
Patented Case
View Patent ↗
Granted: Dec 11, 1984
Filed: May 18, 1983
Inventor
Richard J. Pomeroy
Assignee (at issue)
Glenayre Electronis, Ltd.
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.