Granted Patent
Utility
US 6,226,821 · App. 09/286,635
OB/GYN mattress
Inventors:
Richard H. Heimbrock, Jonathan D. Turner
Patented Case
View Patent ↗
Granted: May 8, 2001
Filed: Apr 5, 1999
Inventors
Richard H. Heimbrock
Jonathan D. Turner
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.