Granted Patent
Utility
US 4,881,097 · App. 07/165,334
Apparatus for controlling automatic focusing in cameras
Inventor:
Yasuaki Ishiguro
Patented Case
View Patent ↗
Granted: Nov 14, 1989
Filed: Mar 8, 1988
Inventor
Yasuaki Ishiguro
Assignee (at issue)
NIKON CORPORATION
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.