Granted Patent
Utility
US 5,800,741 · App. 08/695,408
Evaporative humidifier having wick filter with color change indicator
Inventors:
Neville R. Glenn, Ted Collier, Lori Rigsby
Patented Case
View Patent ↗
Granted: Sep 1, 1998
Filed: Aug 12, 1996
Inventors
Neville R. Glenn
Ted Collier
Lori Rigsby
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.