Granted Patent
Utility
US 5,138,266 · App. 07/640,553
Single-probe charge measurement testing method
Inventor:
Ellsworth W. Stearns
Patented Case
View Patent ↗
Granted: Aug 11, 1992
Filed: Jan 14, 1991
Inventor
Ellsworth W. Stearns
Assignee (at issue)
Digital Equipment Corporation
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.