Granted Patent
Utility
US 5,311,863 · App. 07/897,841
Laser resistant endotracheal tube, tape, material and article
Inventors:
Anthony N. Toppses, David S. Sheridan
Patented Case
View Patent ↗
Granted: May 17, 1994
Filed: Jun 12, 1992
Inventors
Anthony N. Toppses
David S. Sheridan
Assignee (at issue)
Sheridan Catheter Corp.
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.