Granted Patent
Utility
US 5,653,920 · App. 08/664,354
Humidification device
Inventor:
Nicholas F. DiDomenico
Patented Case
View Patent ↗
Granted: Aug 5, 1997
Filed: Jun 17, 1996
Inventor
Nicholas F. DiDomenico
Assignee (at issue)
Bayer Aktiengesellschaft
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.