Granted Patent
Utility
US 4,324,303 · App. 06/136,623
Equalizer bar support assembly
Inventors:
David J. Balzer, Orville E. Kessinger, Jr.
Patented Case
View Patent ↗
Granted: Apr 13, 1982
Filed: Feb 5, 1980
Inventors
David J. Balzer
Orville E. Kessinger, Jr.
Assignee (at issue)
Caterpillar Tractor Co.
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.