Granted Patent
Utility
US 5,899,381 · App. 08/803,009
Electrochemical device for delivery of volatile substances
Inventors:
John Howard Gordon, Ashok V. Joshi, Giorgio di Palma
Patented Case
View Patent ↗
Granted: May 4, 1999
Filed: Feb 21, 1997
Inventors
John Howard Gordon
Ashok V. Joshi
Giorgio di Palma
Assignee (at issue)
Ceramatec, 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.