Granted Patent
Utility
US 5,989,231 · App. 09/007,500
Optical gastrostomy and jejunostomy
Inventors:
Todd Snow, Michael P. Phalen
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: Jan 15, 1998
Inventors
Todd Snow
Michael P. Phalen
Assignee (at issue)
Scimed Life Systems, 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.