Granted Patent
Utility
US 4,436,402 · App. 06/205,694
Copying machine
Inventors:
Ryubun Seimiya, Fumio Iwai, Isao Nosaka
Patented Case
View Patent ↗
Granted: Mar 13, 1984
Filed: Nov 10, 1980
Inventors
Ryubun Seimiya
Fumio Iwai
Isao Nosaka
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.