Granted Patent
Utility
US 6,554,203 · App. 09/942,118
Smart miniature fragrance dispensing device for multiple ambient scenting applications and environments
Inventors:
Joseph Hess, Joachim Körner
Patented Case
View Patent ↗
Granted: Apr 29, 2003
Filed: Aug 30, 2001
Inventors
Joseph Hess
Joachim Körner
Assignee (at issue)
Ing. Erich Pfeiffer GmbH
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.