Granted Patent
Utility
US 5,266,435 · App. 07/802,219
Liquid toners containing charge directors and components for stabilizing their electrical properties
Inventor:
Yaacov Almog
Patented Case
View Patent ↗
Granted: Nov 30, 1993
Filed: Dec 4, 1991
Inventor
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.