Granted Patent
Utility
US 4,557,992 · App. 06/593,352
Developing method
Inventors:
Satoshi Haneda, Seiichiro Hiratsuka
Patented Case
View Patent ↗
Granted: Dec 10, 1985
Filed: Mar 26, 1984
Inventors
Satoshi Haneda
Seiichiro Hiratsuka
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.