Granted Patent
Utility
US 4,425,752 · App. 06/302,929
Baling machine with roller-type floor
Inventors:
Donald L. Sheesley, Willis R. Campbell
Patented Case
View Patent ↗
Granted: Jan 17, 1984
Filed: Sep 16, 1981
Inventors
Donald L. Sheesley
Willis R. Campbell
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.