Granted Patent
Utility
US 4,474,522 · App. 06/413,107
Apparatus for powering a bale wagon tier-tying device
Inventor:
Randall E. Zipser
Patented Case
View Patent ↗
Granted: Oct 2, 1984
Filed: Aug 30, 1982
Inventor
Randall E. Zipser
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.