Granted Patent
Utility
US 4,464,608 · App. 06/417,757
Circuit for controlling optical apparatus such as an ophthalmoscope
Inventor:
H. Robert Pilley
Patented Case
View Patent ↗
Granted: Aug 7, 1984
Filed: Sep 13, 1982
Inventor
H. Robert Pilley
Assignee (at issue)
Warner Lambert Technologies, Inc.
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.