Granted Patent
Utility
US 4,740,195 · App. 06/009,240
Drainage catheter
Inventor:
Andrew P. Lanciano
Patented Case
View Patent ↗
Granted: Apr 26, 1988
Filed: Jan 30, 1987
Inventor
Andrew P. Lanciano
Assignee (at issue)
Medi-Tech Co., Ltd.
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.