Granted Patent
Utility
US 5,573,797 · App. 08/051,258
Film and method for surface treatment of foodstuffs with antimicrobial compositions
Inventor:
Darrel L. Wilhoit
Patented Case
View Patent ↗
Granted: Nov 12, 1996
Filed: Apr 23, 1993
Inventor
Darrel L. Wilhoit
Assignee (at issue)
Viskase Companies, 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.