Granted Patent
Utility
US 4,802,721 · App. 07/097,297
Scanning optical system
Inventor:
Hisao Fujita
Patented Case
View Patent ↗
Granted: Feb 7, 1989
Filed: Sep 14, 1987
Inventor
Hisao Fujita
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.