Granted Patent
Utility
US 5,425,778 · App. 08/132,948
Acetabular socket supporting ring
Inventors:
Ludwig Zichner, Thomas Wahl, Beat Leu
Patented Case
View Patent ↗
Granted: Jun 20, 1995
Filed: Oct 7, 1993
Inventors
Ludwig Zichner
Thomas Wahl
Beat Leu
Assignee (at issue)
Oscobal AG
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.