Granted Patent
Utility
US 5,225,306 · App. 07/650,018
Charge priming agents for liquid toners
Inventors:
Yaacov Almog, Frida Avadik
Patented Case
View Patent ↗
Granted: Jul 6, 1993
Filed: Feb 4, 1991
Inventors
Yaacov Almog
Frida Avadik
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.