Granted Patent
Utility
US 5,458,246 · App. 08/315,537
Horizontal cylindrical sifter with adjustable agitator arms
Inventor:
Kelsey C. Thom, Jr.
Patented Case
View Patent ↗
Granted: Oct 17, 1995
Filed: Sep 30, 1994
Inventor
Kelsey C. Thom, Jr.
Assignee (at issue)
Roskamp Champion
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.