Granted Patent
Utility
US 5,805,362 · App. 08/834,477
Focusing mechanism using a thin diaphragm
Inventor:
James N. Hayes
Patented Case
View Patent ↗
Granted: Sep 8, 1998
Filed: Apr 11, 1997
Inventor
James N. Hayes
Assignee (at issue)
Spectra Precision, 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.