Granted Patent
Utility
US 5,118,428 · App. 07/612,394
Method to remove red blood cells from whole blood samples
Inventors:
Theodore Sand, Barbara McLaughlin, William P. Kolb
Patented Case
View Patent ↗
Granted: Jun 2, 1992
Filed: Nov 13, 1990
Inventors
Theodore Sand
Barbara McLaughlin
William P. Kolb
Assignee (at issue)
QUIDEL CORPORATION
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.