Granted Patent
Utility
US 4,601,290 · App. 06/540,319
Surgical instrument for cutting body tissue from a body area having a restricted space
Inventors:
Marc H. Effron, Henry J. Tancredi
Patented Case
View Patent ↗
Granted: Jul 22, 1986
Filed: Oct 11, 1983
Inventors
Marc H. Effron
Henry J. Tancredi
Assignee (at issue)
Cabot Medical 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.