Granted Patent
Utility
US 6,478,488 · App. 09/345,274
Step-stripper roller shaft in an image forming device
Inventors:
James Engel, John Andrew Tomasik
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Jun 30, 1999
Inventors
James Engel
John Andrew Tomasik
Assignee (at issue)
ZIH Corp.
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.