Granted Patent
Utility
US 5,647,025 · App. 08/309,405
Automatic focusing of biomedical specimens apparatus
Inventors:
Keith L. Frost, Jon W. Hayenga, James Stephanick, Robert Schmidt
Patented Case
View Patent ↗
Granted: Jul 8, 1997
Filed: Sep 20, 1994
Inventors
Keith L. Frost
Jon W. Hayenga
James Stephanick
Robert Schmidt
Assignee (at issue)
Neopath, 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.