Granted Patent
Utility
US 4,905,889 · App. 07/303,793
Packaging tray
Inventor:
Richard L. Schuster
Patented Case
View Patent ↗
Granted: Mar 6, 1990
Filed: Jan 30, 1989
Inventor
Richard L. Schuster
Assignee (at issue)
Manville Corporation
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.