Granted Patent
Utility
US 4,446,472 · App. 06/433,351
Electrophotographically information recording method
Inventors:
Hideaki Kato, Hideyuki Handa
Patented Case
View Patent ↗
Granted: May 1, 1984
Filed: Oct 7, 1982
Inventors
Hideaki Kato
Hideyuki Handa
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.