Granted Patent
Utility
US 5,147,366 · App. 07/487,342
Pressurization of bone cement surrounding an endoprosthesis
Inventors:
Nestor A. Arroyo, Casper F. Stark, Raymond W. Augustin
Patented Case
View Patent ↗
Granted: Sep 15, 1992
Filed: Mar 1, 1990
Inventors
Nestor A. Arroyo
Casper F. Stark
Raymond W. Augustin
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.