Granted Patent
Utility
US 6,223,369 · App. 09/191,579
Patient support surfaces
Inventors:
Edmund K. Maier, Richard W. Raburn, Mark D. Chastain
Patented Case
View Patent ↗
Granted: May 1, 2001
Filed: Nov 13, 1998
Inventors
Edmund K. Maier
Richard W. Raburn
Mark D. Chastain
Assignee (at issue)
Span-America Medical Systems, 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.