Granted Patent
Utility
US 4,853,238 · App. 07/222,658
Method of treating liquid egg and egg white with microwave energy to increase refrigerated shelf life
Inventor:
Frank Huang
Patented Case
View Patent ↗
Granted: Aug 1, 1989
Filed: Jul 21, 1988
Inventor
Frank Huang
Assignee (at issue)
Worthington Foods, 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.