Granted Patent
Utility
US 4,768,895 · App. 07/059,760
Captive ball and socket joint
Inventors:
George C. Ludwig, Alexander J. Craig, Jr.
Patented Case
View Patent ↗
Granted: Sep 6, 1988
Filed: Jun 8, 1987
Inventors
George C. Ludwig
Alexander J. Craig, Jr.
Assignee (at issue)
AVM, 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.