Granted Patent
Utility
US 6,050,552 · App. 09/088,553
Humidifier assembly
Inventors:
Thomas C. Loescher, Dennis L. Fitzwater
Patented Case
View Patent ↗
Granted: Apr 18, 2000
Filed: Jun 1, 1998
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.