Granted Patent
Utility
US 5,310,657 · App. 07/911,375
Kinetic assay for endotoxin using limulus amebocyte lysate and chromogenic substrate
Inventor:
Ronald Berzofsky
Patented Case
View Patent ↗
Granted: May 10, 1994
Filed: Jul 13, 1992
Inventor
Ronald Berzofsky
Assignee (at issue)
Whittaker Bioproducts, 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.