Granted Patent
Utility
US 4,496,037 · App. 06/459,090
Gravity-feed shelf and components therefor
Inventor:
William S. Spamer
Patented Case
View Patent ↗
Granted: Jan 29, 1985
Filed: Jan 19, 1983
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.