Granted Patent
Utility
US 5,218,784 · App. 07/811,615
Apparatus for opening and closing bin lid from below
Inventor:
Eugene B. Pollock
Patented Case
View Patent ↗
Granted: Jun 15, 1993
Filed: Dec 23, 1991
Inventor
Eugene B. Pollock
Assignee (at issue)
Grain Systems, 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.