Granted Patent
Utility
US 4,485,176 · App. 06/392,784
Turbidimetric method for measuring protein in urine and cerebrospinal fluid
Inventors:
Ernest Bollin, Jr., Richard S. Schifreen
Patented Case
View Patent ↗
Granted: Nov 27, 1984
Filed: Jun 28, 1982
Inventors
Ernest Bollin, Jr.
Richard S. Schifreen
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.