Granted Patent
Utility
US 5,347,213 · App. 07/936,486
Air core gauge method and apparatus with reduced power dissipation
Inventors:
William J. Johnston, James Guest, James D. Richardson
Patented Case
View Patent ↗
Granted: Sep 13, 1994
Filed: Aug 28, 1992
Inventors
William J. Johnston
James Guest
James D. Richardson
Assignee (at issue)
DELCO ELECTRONICS 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.