Granted Patent
Utility
US 4,751,653 · App. 06/900,043
Fault detector for a three-phase alternating current supply
Inventors:
Brian Scott Junk, Robert E. Krocker, Tony J. Wood
Patented Case
View Patent ↗
Granted: Jun 14, 1988
Filed: Aug 25, 1986
Inventors
Brian Scott Junk
Robert E. Krocker
Tony J. Wood
Assignee (at issue)
American Standard 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.