Granted Patent
Utility
US 6,286,167 · App. 09/585,029
Mattress structure
Inventor:
James R. Stolpmann
Patented Case
View Patent ↗
Granted: Sep 11, 2001
Filed: Jun 1, 2000
Inventor
James R. Stolpmann
Assignee (at issue)
HILL-ROM SERVICES, 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.