Granted Patent
Utility
US 5,344,232 · App. 08/132,134
Bone cement mixing and loading apparatus
Inventors:
Charles L. Nelson, Michael W. Steffler, Douglas L. Tyler, Sr.
Patented Case
View Patent ↗
Granted: Sep 6, 1994
Filed: Oct 5, 1993
Inventors
Charles L. Nelson
Michael W. Steffler
Douglas L. Tyler, Sr.
Assignee (at issue)
STRYKER 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.