Granted Patent
Utility
US 6,413,692 · App. 09/900,552
Toner processes
Inventor:
Chieh-Min Cheng
Patented Case
View Patent ↗
Granted: Jul 2, 2002
Filed: Jul 6, 2001
Inventor
Chieh-Min Cheng
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.