Granted Patent
Utility
US 5,898,475 · App. 08/812,798
Precision fragrance dispenser apparatus
Inventor:
David Martin
Patented Case
View Patent ↗
Granted: Apr 27, 1999
Filed: Mar 6, 1997
Inventor
David Martin
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.