Granted Patent
Utility
US 5,043,764 · App. 07/215,971
Replaceable developer station having indicator for determining whether developer station is used or new
Inventors:
Kenneth A. Arnold, Lawrence A. Hill, Kelly S. Robinson
Patented Case
View Patent ↗
Granted: Aug 27, 1991
Filed: Jul 7, 1988
Inventors
Kenneth A. Arnold
Lawrence A. Hill
Kelly S. Robinson
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.