Granted Patent
Utility
US 4,750,842 · App. 07/076,454
Mixing apparatus employing a cavity transfer mixer
Inventor:
Elwyn Huddleston
Patented Case
View Patent ↗
Granted: Jun 14, 1988
Filed: Jul 22, 1987
Inventor
Elwyn Huddleston
Assignee (at issue)
The Kendall Company LP
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.