Granted Patent
Utility
US 5,653,548 · App. 08/598,223
Method and apparatus for a ball and socket joint
Inventor:
Samuel Amdahl
Patented Case
View Patent ↗
Granted: Aug 5, 1997
Filed: Feb 7, 1996
Inventor
Samuel Amdahl
Assignee (at issue)
ILLINOIS TOOL WORKS INC.
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.