Granted Patent
Utility
US 4,926,889 · App. 07/195,965
Apparatus for treating tobacco products
Inventor:
George E. Brackett
Patented Case
View Patent ↗
Granted: May 22, 1990
Filed: May 19, 1988
Inventor
George E. Brackett
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.