Granted Patent
Utility
US 5,809,364 · App. 08/858,319
Instability detection for corona chargers
Inventors:
Thomas Nathaniel Tombs, John W. May
Patented Case
View Patent ↗
Granted: Sep 15, 1998
Filed: May 19, 1997
Inventors
Thomas Nathaniel Tombs
John W. May
Assignee (at issue)
EASTMAN KODAK COMPANY
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.