Granted Patent
Utility
US 6,181,886 · App. 09/471,787
Toner replenishment and collection apparatus and method
Inventors:
David E. Hockey, Matthias H. Regelsberger, Christopher S. Garcia, Philip A. Stern, James A. Zimmer, Jr.
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Dec 23, 1999
Inventors
David E. Hockey
Matthias H. Regelsberger
Christopher S. Garcia
Philip A. Stern
James A. Zimmer, Jr.
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.