Granted Patent
Utility
US 5,801,749 · App. 08/572,283
Universal audio/video signal converter
Inventors:
Loi Quang Ninh, Barry D. Hackworth
Patented Case
View Patent ↗
Granted: Sep 1, 1998
Filed: Dec 13, 1995
Inventors
Loi Quang Ninh
Barry D. Hackworth
Assignees (at issue)
SONY GROUP CORPORATION
SONY ELECTRONICS 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.