Granted Patent
Utility
US 4,484,803 · App. 06/443,238
Objective lens for regenerating a video disc
Inventor:
Norikazu Arai
Patented Case
View Patent ↗
Granted: Nov 27, 1984
Filed: Nov 22, 1982
Inventor
Norikazu Arai
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.