Granted Patent
Utility
US 4,549,655 · App. 06/558,311
Container for a layered chemical analysis system
Inventors:
Jesse G. Forsythe, Jr., Sally S. Stafford
Patented Case
View Patent ↗
Granted: Oct 29, 1985
Filed: Dec 5, 1983
Inventors
Jesse G. Forsythe, Jr.
Sally S. Stafford
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.