Granted Patent
Utility
US 4,807,928 · App. 07/098,456
Tray apparatus for use with a chair
Inventor:
Richard E. Cone
Patented Case
View Patent ↗
Granted: Feb 28, 1989
Filed: Sep 18, 1987
Inventor
Richard E. Cone
Assignee (at issue)
Gerico, 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.