Granted Patent
Utility
US 6,684,647 · App. 10/141,018
High-frequency melting of ice between freezer packages
Inventor:
Victor F. Petrenko
Patented Case
View Patent ↗
Granted: Feb 3, 2004
Filed: May 8, 2002
Inventor
Victor F. Petrenko
Assignee (at issue)
THE TRUSTEES OF DARTMOUTH COLLEGE
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.