Granted Patent
Utility
US 4,453,641 · App. 06/399,457
Gravity-feed storage and delivery system
Inventors:
George E. Rasmussen, Lucius B. Donkle, Jr.
Patented Case
View Patent ↗
Granted: Jun 12, 1984
Filed: Jul 19, 1982
Inventors
George E. Rasmussen
Lucius B. Donkle, Jr.
Assignee (at issue)
The Interlake Companies, 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.