Granted Patent
Utility
US 5,989,550 · App. 08/480,150
Materials and methods for immunocontraception
Inventors:
Jeffrey D. Harris, Kuang Hsu, Joseph S. Podolski
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: Jun 7, 1995
Inventors
Jeffrey D. Harris
Kuang Hsu
Joseph S. Podolski
Assignee (at issue)
Zonagen, 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.