Granted Patent
Utility
US 4,791,453 · App. 07/023,455
Recording apparatus
Inventors:
Yasufumi Koseki, Seiichi Suzuki, Utami Soma, Harufumi Yamashita
Patented Case
View Patent ↗
Granted: Dec 13, 1988
Filed: Mar 9, 1987
Inventors
Yasufumi Koseki
Seiichi Suzuki
Utami Soma
Harufumi Yamashita
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.