Granted Patent
Utility
US 4,934,449 · App. 07/207,161
Air intake system for an agricultural implement
Inventors:
John D. Watt, Robert A. Matousek, Harold C. Oban
Patented Case
View Patent ↗
Granted: Jun 19, 1990
Filed: Jun 15, 1988
Inventors
John D. Watt
Robert A. Matousek
Harold C. Oban
Assignee (at issue)
J. I. Case 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.