Granted Patent
Utility
US 4,896,774 · App. 07/048,437
Spacer tray for packaging containers
Inventors:
Roy Hammett, Edward L. Passarelli
Patented Case
View Patent ↗
Granted: Jan 30, 1990
Filed: May 11, 1987
Inventors
Roy Hammett
Edward L. Passarelli
Assignee (at issue)
International Container Systems, 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.