Granted Patent
Utility
US 4,664,028 · App. 06/753,895
Apparatus for adding liquid poloxalene to feeds
Inventor:
David R. Mattson
Patented Case
View Patent ↗
Granted: May 12, 1987
Filed: Jul 11, 1985
Inventor
David R. Mattson
Assignee (at issue)
Garland Industries, 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.