Granted Patent
Utility
US 5,124,222 · App. 07/589,043
Toner and developer compositions having cleaning and lubricating additives
Inventors:
Jeffrey L. Clark, Albert W. Leclair
Patented Case
View Patent ↗
Granted: Jun 23, 1992
Filed: Sep 27, 1990
Inventors
Jeffrey L. Clark
Albert W. Leclair
Assignee (at issue)
Nashua Corporation
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.