Granted Patent
Utility
US 5,856,407 · App. 08/952,269
Process for making bimodul, cross-linked toner resin
Inventor:
Francis L. CHUPKA
Patented Case
View Patent ↗
Granted: Jan 5, 1999
Filed: Dec 11, 1997
Inventor
Francis L. CHUPKA
Assignee (at issue)
IMAGE POLYMERS COMPANY, LLC
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.