Granted Patent
Utility
US 4,669,670 · App. 06/763,168
Expeller for manure spreaders
Inventors:
Gilbert W. Linde, James T. Clevenger, Jr.
Patented Case
View Patent ↗
Granted: Jun 2, 1987
Filed: Aug 7, 1985
Inventors
Gilbert W. Linde
James T. Clevenger, Jr.
Assignee (at issue)
New Holland, 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.