Granted Patent
Utility
US 4,562,839 · App. 06/456,163
Surgical instrument
Inventors:
Joseph W. Blake, III, Paul DiCesare
Patented Case
View Patent ↗
Granted: Jan 7, 1986
Filed: Jan 6, 1983
Inventors
Joseph W. Blake, III
Paul DiCesare
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.