Granted Patent
Utility
US 4,345,421 · App. 06/214,195
Baling machine with a non-circular chamber
Inventors:
Terry R. Schwalenberg, Frank C. Krumholz, Glenn G. Kanengieter, Larry L. Henkensiefken
Patented Case
View Patent ↗
Granted: Aug 24, 1982
Filed: Dec 8, 1980
Inventors
Terry R. Schwalenberg
Frank C. Krumholz
Glenn G. Kanengieter
Larry L. Henkensiefken
Assignee (at issue)
Owatonna Manufacturing Company
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.