Granted Patent
Utility
US 6,428,941 · App. 09/722,510
Toner compositions containing a styrene acrylate copolymer
Inventors:
Chieh-Min Cheng, Grazyna E. Kmiecik-Lawrynowicz, Karen L. Lamora
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Nov 28, 2000
Inventors
Chieh-Min Cheng
Grazyna E. Kmiecik-Lawrynowicz
Karen L. Lamora
Assignee (at issue)
Xerox 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.