Granted Patent
Utility
US 6,073,289 · App. 08/993,183
Air fluidized bed
Inventors:
Michael V. Bolden, Vincent L. Babson, Daniel A. Denson
Patented Case
View Patent ↗
Granted: Jun 13, 2000
Filed: Dec 18, 1997
Inventors
Michael V. Bolden
Vincent L. Babson
Daniel A. Denson
Assignee (at issue)
HILL-ROM, 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.