Granted Patent
Utility
US 6,764,462 · App. 10/159,583
Wound treatment apparatus
Inventors:
James R. Risk, Jr., Robert Petrosenko
Patented Case
View Patent ↗
Granted: Jul 20, 2004
Filed: May 31, 2002
Inventors
James R. Risk, Jr.
Robert Petrosenko
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.