Granted Patent
Utility
US 4,299,473 · App. 05/941,410
Electrophotographic copying machine using a thick sheet of small size as a transfer sheet
Inventor:
Koichi Endo
Patented Case
View Patent ↗
Granted: Nov 10, 1981
Filed: Sep 11, 1978
Inventor
Koichi Endo
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.