Granted Patent
Utility
US 4,589,349 · App. 06/378,069
Extendible shelf
Inventors:
James L. Gebhardt, James L. Hanna, Douglas Whiten
Patented Case
View Patent ↗
Granted: May 20, 1986
Filed: May 14, 1982
Inventors
James L. Gebhardt
James L. Hanna
Douglas Whiten
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.