Granted Patent
Utility
US 5,724,964 · App. 08/499,063
Disposable face mask with enhanced fluid barrier
Inventors:
Kevin K. Brunson, Frank D. Rasberry, Albert R. Rich, Jr.
Patented Case
View Patent ↗
Granted: Mar 10, 1998
Filed: Jul 6, 1995
Inventors
Kevin K. Brunson
Frank D. Rasberry
Albert R. Rich, Jr.
Assignee (at issue)
Tecnol Medical Products, 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.