Granted Patent
Utility
US 5,401,501 · App. 07/957,994
Methods for maintaining and administering live probiotic as feed additives for animals
Inventor:
William C. Pratt
Patented Case
View Patent ↗
Granted: Mar 28, 1995
Filed: Oct 7, 1992
Inventor
William C. Pratt
Assignee (at issue)
Micro Chemical, 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.