Granted Patent
Utility
US 5,565,804 · App. 08/497,203
Signal switching circuit
Inventors:
Chang Maochuan, Cheng Ya-an
Patented Case
View Patent ↗
Granted: Oct 15, 1996
Filed: Jun 30, 1995
Inventors
Chang Maochuan
Cheng Ya-an
Assignee (at issue)
Acer Peripherals, 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.