Granted Patent
Utility
US 4,893,623 · App. 07/120,981
Method and apparatus for treating hypertrophy of the prostate gland
Inventor:
Robert F. Rosenbluth
Patented Case
View Patent ↗
Granted: Jan 16, 1990
Filed: Nov 20, 1987
Inventor
Robert F. Rosenbluth
Assignee (at issue)
Advanced Surgical Intervention, Inc.
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.