Granted Patent
Utility
US 5,040,112 · App. 07/281,250
Method of separating the three major types of blood cells from a white blood cell histogram
Inventors:
Ricky A. Marshall, David G. Harlow
Patented Case
View Patent ↗
Granted: Aug 13, 1991
Filed: Dec 7, 1988
Inventors
Ricky A. Marshall
David G. Harlow
Assignee (at issue)
Serono-Baker 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.