Granted Patent
Utility
US 6,736,140 · App. 10/388,089
Exhalation evacuator
Inventor:
Paul S. Baczkowski
Patented Case
View Patent ↗
Granted: May 18, 2004
Filed: Mar 13, 2003
Inventor
Paul S. Baczkowski
Assignee (at issue)
Matrx Medical 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.