Granted Patent
Utility
US 4,861,581 · App. 06/938,425
Detection of necrotic malignant tissue and associated therapy
Inventors:
Alan L. Epstein, Clive R. Taylor
Patented Case
View Patent ↗
Granted: Aug 29, 1989
Filed: Dec 5, 1986
Inventors
Alan L. Epstein
Clive R. Taylor
Assignee (at issue)
Cancer Biologics, 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.