Granted Patent
Utility
US 6,237,899 · App. 09/227,382
Humidifier with wick change indicator
Inventors:
Yigal Offir, Neville R. Glenn, Paul J. Powers, Robert S. VannRox
Patented Case
View Patent ↗
Granted: May 29, 2001
Filed: Jan 8, 1999
Inventors
Yigal Offir
Neville R. Glenn
Paul J. Powers
Robert S. VannRox
Assignee (at issue)
Holmes Products Corporation
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.