Granted Patent
Utility
US 4,525,669 · App. 06/451,306
Power measurement in an electrical distribution system having three or more wires
Inventors:
Philip M. Holberton, Bruce Randall, Jay K. Marshall
Patented Case
View Patent ↗
Granted: Jun 25, 1985
Filed: Dec 20, 1982
Inventors
Philip M. Holberton
Bruce Randall
Jay K. Marshall
Assignee (at issue)
Sangamo Weston, 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.