Granted Patent
Utility
US 4,386,415 · App. 06/148,161
Compare logic circuit for train printer-data link processor
Inventor:
David P. Chadra
Patented Case
View Patent ↗
Granted: May 31, 1983
Filed: May 7, 1980
Inventor
David P. Chadra
Assignee (at issue)
Burroughs, 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.