Granted Patent
Utility
US 5,136,469 · App. 07/731,413
Powered surgical handpiece incorporating sealed multi semiconductor motor control package
Inventors:
Steven J. Carusillo, Ralph S. Robertson, John M. Izenbaard
Patented Case
View Patent ↗
Granted: Aug 4, 1992
Filed: Jul 17, 1991
Inventors
Steven J. Carusillo
Ralph S. Robertson
John M. Izenbaard
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.