Granted Patent
Utility
US 4,875,871 · App. 06/670,322
Modular electrical conductor system
Inventors:
Donald J. Booty, Donald J. Booty, Jr.
Patented Case
View Patent ↗
Granted: Oct 24, 1989
Filed: Nov 9, 1904
Inventors
Donald J. Booty
Donald J. Booty, Jr.
Assignee (at issue)
National Service Industries, 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.