Granted Patent
Utility
US 4,541,713 · App. 06/570,361
Document size-detecting device of copying machine
Inventor:
Yoshikazu Maekawa
Patented Case
View Patent ↗
Granted: Sep 17, 1985
Filed: Jan 13, 1984
Inventor
Yoshikazu Maekawa
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.