Granted Patent
Utility
US 4,591,257 · App. 06/579,020
Automatic focusing camera
Inventor:
Hiroshi Sawano
Patented Case
View Patent ↗
Granted: May 27, 1986
Filed: Feb 10, 1984
Inventor
Hiroshi Sawano
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.