Granted Patent
Utility
US 6,543,451 · App. 09/471,317
Endotracheal catheter and manifold assembly with improved seal and valve
Inventors:
Chet M. Crump, Edward B. Madsen
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Dec 23, 1999
Inventors
Chet M. Crump
Edward B. Madsen
Assignee (at issue)
Kimberly-Clark Worldwide, 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.