Granted Patent
Utility
US 4,723,143 · App. 07/022,272
Image reproduction developing device with a vibrating supply hopper partition attachment
Inventor:
Masayuki Enomoto
Patented Case
View Patent ↗
Granted: Feb 2, 1988
Filed: Mar 5, 1987
Inventor
Masayuki Enomoto
Assignee (at issue)
Konishiroku Photo Industry Co., Ltd.
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.