Granted Patent
Utility
US 4,470,247 · App. 06/497,932
Round bale forming machine
Inventor:
Aquila D. Mast
Patented Case
View Patent ↗
Granted: Sep 11, 1984
Filed: May 25, 1983
Inventor
Aquila D. Mast
Assignee (at issue)
Sperry Corp.
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.