Granted Patent
Utility
US 4,861,337 · App. 07/163,264
Collapsible urethral catheter
Inventor:
Robert George
Patented Case
View Patent ↗
Granted: Aug 29, 1989
Filed: Mar 2, 1988
Inventor
Robert George
Assignee (at issue)
Sherwood Medical Company
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.