Granted Patent
Utility
US 5,454,367 · App. 08/106,915
Method of using endoscopic inflatable retraction device with fluid tight elastomeric window
Inventors:
Frederic H. Moll, Charles Gresl, Albert K. Chin, Philip K. Hopper
Patented Case
View Patent ↗
Granted: Oct 3, 1995
Filed: Aug 13, 1993
Inventors
Frederic H. Moll
Charles Gresl
Albert K. Chin
Philip K. Hopper
Assignee (at issue)
Origin Medsystems, 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.