Granted Patent
Utility
US 4,813,962 · App. 07/032,333
Hip joint prosthesis
Inventors:
Andre Georges Deckner, Martin Imhof, Karl Zweymuller
Patented Case
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Granted: Mar 21, 1989
Filed: Mar 30, 1987
Inventors
Andre Georges Deckner
Martin Imhof
Karl Zweymuller
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.