Granted Patent
Utility
US 6,019,355 · App. 09/030,183
Contractible portable humidifier
Inventors:
Walter Birdsell, Kenneth A. Ritsher, Jui-Shang Wang
Patented Case
View Patent ↗
Granted: Feb 1, 2000
Filed: Feb 25, 1998
Inventors
Walter Birdsell
Kenneth A. Ritsher
Jui-Shang Wang
Assignee (at issue)
Honeywell Limited
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.