Granted Patent
Utility
US 5,464,739 · App. 08/293,723
Composition method for determining the presence of leukocyte cells, esterase or protease in a test sample
Inventors:
Gary M. Johnson, Robert J. Schaeper
Patented Case
View Patent ↗
Granted: Nov 7, 1995
Filed: Aug 22, 1994
Inventors
Gary M. Johnson
Robert J. Schaeper
Assignee (at issue)
Bayer Aktiengesellschaft
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.