Granted Patent
Utility
US 4,790,673 · App. 07/031,416
Rock neck bearing assembly and inner bearing component therefor
Inventor:
Thomas E. Simmons
Patented Case
View Patent ↗
Granted: Dec 13, 1988
Filed: Mar 30, 1987
Inventor
Thomas E. Simmons
Assignee (at issue)
Morgan Construction 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.