Granted Patent
Utility
US 6,014,040 · App. 08/767,597
Bi-directional signal transmission system
Inventor:
Philip Tracy
Patented Case
View Patent ↗
Granted: Jan 11, 2000
Filed: Dec 9, 1996
Inventor
Philip Tracy
Assignee (at issue)
U.S. Philips Corporation
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.