Granted Patent
Utility
US 5,192,286 · App. 07/736,173
Method and device for retrieving materials from body lumens
Inventors:
Cu N. Phan, Marshall L. Stoller
Patented Case
View Patent ↗
Granted: Mar 9, 1993
Filed: Jul 26, 1991
Inventors
Cu N. Phan
Marshall L. Stoller
Assignee (at issue)
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
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.