Granted Patent
Utility
US 5,987,271 · App. 08/998,787
Method and apparatus for control of variability in charge to mass ratio in a development station
Inventors:
Matthias H. Regelsberger, David E. Hockey, Jeffrey C. Blood, Kevin D. Lofftus
Patented Case
View Patent ↗
Granted: Nov 16, 1999
Filed: Dec 29, 1997
Inventors
Matthias H. Regelsberger
David E. Hockey
Jeffrey C. Blood
Kevin D. Lofftus
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.