Granted Patent
Utility
US 5,151,739 · App. 07/737,304
Development apparatus and improved auger device for use therein
Inventor:
Edwin A. Hediger
Patented Case
View Patent ↗
Granted: Sep 29, 1992
Filed: Jul 29, 1991
Inventor
Edwin A. Hediger
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.