Granted Patent
Utility
US 5,891,018 · App. 08/934,626
Ball joint retractor
Inventor:
B. Keith Wells
Patented Case
View Patent ↗
Granted: Apr 6, 1999
Filed: Sep 19, 1997
Inventor
B. Keith Wells
Assignee (at issue)
Genzyme Corporation
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.