Granted Patent
Utility
US 4,306,679 · App. 06/174,326
Dispenser for volatilizable substances
Inventors:
Russell L. Dusek, Gordon R. Perry, Gunther H. Bartsch
Patented Case
View Patent ↗
Granted: Dec 22, 1981
Filed: Aug 1, 1980
Inventors
Russell L. Dusek
Gordon R. Perry
Gunther H. Bartsch
Assignee (at issue)
The Drackett Company
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.