Granted Patent
Utility
US 4,743,446 · App. 06/897,534
Liver fluke antigens derived from juvenile fasciolo organisms
Inventor:
Clive E. Bennett
Patented Case
View Patent ↗
Granted: May 10, 1988
Filed: Aug 5, 1986
Inventor
Clive E. Bennett
Assignee (at issue)
NATIONAL RESEARCH DEVELOPMENT CORPORATION
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.