Granted Patent
Utility
US 4,810,639 · App. 06/852,708
Immunoassay for CK-MB using bound and soluble antibodies
Inventor:
Thomas John Pankratz
Patented Case
View Patent ↗
Granted: Mar 7, 1989
Filed: Apr 16, 1986
Inventor
Thomas John Pankratz
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.