Granted Patent
Utility
US 4,721,097 · App. 06/925,603
Endoscope sheaths and method and apparatus for installation and removal
Inventor:
Frank D'Amelio
Patented Case
View Patent ↗
Granted: Jan 26, 1988
Filed: Oct 31, 1986
Inventor
Frank D'Amelio
Assignee (at issue)
Circon 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.