Granted Patent
Utility
US 5,229,826 · App. 07/787,291
Toner cleaning apparatus
Inventor:
Sven Sonnenberg
Patented Case
View Patent ↗
Granted: Jul 20, 1993
Filed: Nov 4, 1991
Inventor
Sven Sonnenberg
Assignee (at issue)
EASTMAN KODAK COMPANY
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.