Granted Patent
Utility
US 4,908,034 · App. 07/314,285
Endoprosthetic bone joint components
Inventors:
Barry O. Weightman, Robert A. Wordsworth
Patented Case
View Patent ↗
Granted: Mar 13, 1990
Filed: Feb 23, 1989
Inventors
Barry O. Weightman
Robert A. Wordsworth
Assignee (at issue)
NATIONAL RESEARCH DEVELOPMENT 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.