Granted Patent
Utility
US 6,584,970 · App. 09/413,209
Retaining plug for endotracheal catheter and manifold assembly and method of use
Inventors:
Chet M. Crump, Edward B. Madsen
Patented Case
View Patent ↗
Granted: Jul 1, 2003
Filed: Oct 5, 1999
Inventors
Chet M. Crump
Edward B. Madsen
Assignee (at issue)
Ballard Medical Products
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.