Granted Patent
Utility
US 4,645,335 · App. 06/768,497
Focus adjusting mechanism in exposure optical apparatus
Inventor:
Shun Kawata
Patented Case
View Patent ↗
Granted: Feb 24, 1987
Filed: Aug 22, 1985
Inventor
Shun Kawata
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.