Granted Patent
Utility
US 4,398,843 · App. 06/308,748
Self-aligning arrangement for the eccentric mounting shaft of a vibratory compactor
Inventor:
John J. Bloom, Jr.
Patented Case
View Patent ↗
Granted: Aug 16, 1983
Filed: Dec 5, 1980
Inventor
John J. Bloom, 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.