Granted Patent
Utility
US 5,340,211 · App. 08/154,636
Programmable apparatus and method for delivering microingredient feed additives by weight
Inventor:
William C. Pratt
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Nov 17, 1993
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.