Granted Patent
Utility
US 5,230,979 · App. 07/712,111
Method of electrostatic printing and toner used in such method
Inventors:
Joseph Chow, George A. Gibson, Ray H. Luebbe, Jr.
Patented Case
View Patent ↗
Granted: Jul 27, 1993
Filed: Jun 7, 1991
Inventors
Joseph Chow
George A. Gibson
Ray H. Luebbe, Jr.
Assignee (at issue)
AM International, 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.