Granted Patent
Utility
US 4,784,663 · App. 07/126,521
Acetabular cup assembly
Inventor:
Robert V. Kenna
Patented Case
View Patent ↗
Granted: Nov 15, 1988
Filed: Nov 30, 1987
Inventor
Robert V. Kenna
Assignee (at issue)
Pfizer Hospital Products Group, 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.