Granted Patent
Utility
US 5,819,643 · App. 08/993,111
Baler density control system
Inventors:
Irwin D. McIlwain, Preston L. Ellis
Patented Case
View Patent ↗
Granted: Oct 13, 1998
Filed: Dec 18, 1997
Inventors
Irwin D. McIlwain
Preston L. Ellis
Assignee (at issue)
New Holland North America, 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.