Granted Patent
Utility
US 5,169,628 · App. 07/582,891
Chimeric glycoproteins containing immunogenic segments of human parainfluenza virus type 3
Inventor:
Michael W. Wathen
Patented Case
View Patent ↗
Granted: Dec 8, 1992
Filed: Oct 5, 1990
Inventor
Michael W. Wathen
Assignee (at issue)
The Upjohn Co.
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.