Granted Patent
Utility
US 6,445,322 · App. 09/164,948
Digital-to-analog converter with improved output impedance switch
Inventor:
Minh V. Watson
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Oct 1, 1998
Inventor
Minh V. Watson
Assignee (at issue)
ATI International SRL
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.