Granted Patent
Utility
US 4,733,306 · App. 07/010,500
Methods of discriminating and copying an image
Inventors:
Masahiko Matsunawa, Yoshinori Abe
Patented Case
View Patent ↗
Granted: Mar 22, 1988
Filed: Feb 3, 1987
Inventors
Masahiko Matsunawa
Yoshinori Abe
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.