Granted Patent
Utility
US 5,527,264 · App. 08/193,615
Methods of using endoscopic inflatable retraction devices
Inventors:
Frederic H. Moll, Charles Gresl, Albert K. Chin, Philip K. Hopper
Patented Case
View Patent ↗
Granted: Jun 18, 1996
Filed: Feb 8, 1994
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.