Granted Patent
Utility
US 4,497,160 · App. 06/616,783
Mower with lateral extension wings
Inventors:
David L. Mullet, Raymond J. Rilling, Elmer D. Voth
Patented Case
View Patent ↗
Granted: Feb 5, 1985
Filed: Jun 1, 1984
Inventors
David L. Mullet
Raymond J. Rilling
Elmer D. Voth
Assignee (at issue)
Excel 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.