Granted Patent
Utility
US 6,209,539 · App. 09/273,702
Asymmetric patient adapter for ventilator circuits
Inventors:
Thomas C. Loescher, Dennis L. Fitzwater
Patented Case
View Patent ↗
Granted: Apr 3, 2001
Filed: Mar 22, 1999
Inventors
Thomas C. Loescher
Dennis L. Fitzwater
Assignee (at issue)
Hudson Respiratory Care, 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.