Granted Patent
Utility
US 5,229,926 · App. 07/862,004
Power supply interlock for a distributed power system
Inventors:
Darrel D. Donaldson, Daniel Wissell
Patented Case
View Patent ↗
Granted: Jul 20, 1993
Filed: Apr 1, 1992
Inventors
Darrel D. Donaldson
Daniel Wissell
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.