Granted Patent
Utility
US 4,419,040 · App. 06/329,349
Backhoe swing mechanism
Inventors:
Carl O. Pedersen, Herman J. Maurer
Patented Case
View Patent ↗
Granted: Dec 6, 1983
Filed: Dec 10, 1981
Inventors
Carl O. Pedersen
Herman J. Maurer
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.