Granted Patent
Utility
US 4,910,024 · App. 07/215,210
Method and apparatus for administering live bacteria as feed additives to livestock and poultry
Inventor:
William C. Pratt
Patented Case
View Patent ↗
Granted: Mar 20, 1990
Filed: Jul 5, 1988
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.