Granted Patent
Utility
US 4,998,533 · App. 07/320,896
Apparatus and method for in vivo analysis of red and white blood cell indices
Inventor:
James Winkelman
Patented Case
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Granted: Mar 12, 1991
Filed: Mar 9, 1989
Inventor
James Winkelman
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.