Granted Patent
Utility
US 5,263,972 · App. 07/989,975
Surgical handpiece chuck and blade
Inventors:
James Evans, Gary Kalinka
Patented Case
View Patent ↗
Granted: Nov 23, 1993
Filed: Dec 11, 1992
Inventors
James Evans
Gary Kalinka
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.