Granted Patent
Utility
US 6,642,877 · App. 10/217,659
Method of forming D/A resistor strings with cross coupling switches
Inventor:
Ka Y. Leung
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: Aug 13, 2002
Inventor
Ka Y. Leung
Assignee (at issue)
Cygnal Integrated Products, 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.