Granted Patent
Utility
US 4,958,739 · App. 07/416,057
Composite organizer and gravity feed shelf
Inventor:
William S. Spamer
Patented Case
View Patent ↗
Granted: Sep 25, 1990
Filed: Oct 2, 1989
Inventor
William S. Spamer
Assignee (at issue)
The Mead 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.