Granted Patent
Utility
US 5,084,701 · App. 07/518,397
Digital-to-analog converter using cyclical current source switching
Inventor:
Mark Sauerwald
Patented Case
View Patent ↗
Granted: Jan 28, 1992
Filed: May 3, 1990
Inventor
Mark Sauerwald
Assignee (at issue)
TRW Limited
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.