Granted Patent
Utility
US 4,857,652 · App. 07/235,199
Chemiluminescent 1,2-dioxetane compounds
Inventor:
Arthur P. Schaap
Patented Case
View Patent ↗
Granted: Aug 15, 1989
Filed: Aug 23, 1988
Inventor
Arthur P. Schaap
Assignee (at issue)
THE BOARD OF GOVERNORS OF WAYNE STATE UNIVERSITY
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.