Granted Patent
Utility
US 5,281,507 · App. 07/970,129
Treatment to enhance transfer in liquid toner electrophotography
Inventors:
Robert M. Simms, David Dreyfuss, George A. Gibson, Jian Wen
Patented Case
View Patent ↗
Granted: Jan 25, 1994
Filed: Nov 2, 1992
Inventors
Robert M. Simms
David Dreyfuss
George A. Gibson
Jian Wen
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.