Granted Patent
Utility
US 3,949,907 · App. 05/535,286
Storage bin with liquid sealed discharge opening
Inventor:
Erbie G. Mize
Patented Case
View Patent ↗
Granted: Apr 13, 1976
Filed: Dec 23, 1974
Inventor
Erbie G. Mize
Assignee (at issue)
Astec Industries, 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.