Granted Patent
Utility
US 5,286,593 · App. 07/833,232
Liquid developer containing stabilized charge director composition
Inventors:
Benzion Landa, Yaacov Almog
Patented Case
View Patent ↗
Granted: Feb 15, 1994
Filed: Feb 10, 1992
Inventors
Benzion Landa
Yaacov Almog
Assignee (at issue)
Spectrum Sciences B.V.
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.