Granted Patent
Utility
US 5,170,744 · App. 07/806,559
Long-term storage of infective juvenile nematodes in pseudoplastic layers
Inventors:
Paul L. Pruitt, Milton J. Friedman
Patented Case
View Patent ↗
Granted: Dec 15, 1992
Filed: Dec 13, 1991
Inventors
Paul L. Pruitt
Milton J. Friedman
Assignee (at issue)
Biosys 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.