Granted Patent
Utility
US 4,900,306 · App. 07/291,115
Device for intubation of percutaneous endoscopic ostomy
Inventors:
David G. Quinn, Robert B. Edwards, II, Erik Andersen
Patented Case
View Patent ↗
Granted: Feb 13, 1990
Filed: Dec 28, 1988
Inventors
David G. Quinn
Robert B. Edwards, II
Erik Andersen
Assignee (at issue)
Corpak, 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.