Granted Patent
Utility
US 6,685,681 · App. 09/725,352
Vacuum therapy and cleansing dressing for wounds
Inventors:
Jeffrey S. Lockwood, Robert Petrosenko, James R. Risk, Jr.
Patented Case
View Patent ↗
Granted: Feb 3, 2004
Filed: Nov 29, 2000
Inventors
Jeffrey S. Lockwood
Robert Petrosenko
James R. Risk, Jr.
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.