Granted Patent
Utility
US 5,489,442 · App. 08/228,608
Prolongation of shelf-life in perishable food products
Inventors:
Joseph E. Dunn, Thomas Ott, Reginald W. Clark
Patented Case
View Patent ↗
Granted: Feb 6, 1996
Filed: Apr 18, 1994
Inventors
Joseph E. Dunn
Thomas Ott
Reginald W. Clark
Assignee (at issue)
PurePulse Technologies, 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.