Granted Patent
Utility
US 5,940,183 · App. 08/873,155
Filter wheel and method using filters of varying thicknesses
Inventor:
Martin Miller
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: Jun 11, 1997
Inventor
Martin Miller
Assignee (at issue)
Johnson & Johnson Clinical Diagnostics, 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.