Granted Patent
Utility
US 5,428,640 · App. 07/965,123
Switch circuit for setting and signaling a voltage level
Inventor:
Alfred T. Townley
Patented Case
View Patent ↗
Granted: Jun 27, 1995
Filed: Oct 22, 1992
Inventor
Alfred T. Townley
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.