Granted Patent
Utility
US 6,131,584 · App. 09/292,243
Tobacco treatment process
Inventor:
John H. Lauterbach
Patented Case
View Patent ↗
Granted: Oct 17, 2000
Filed: Apr 15, 1999
Inventor
John H. Lauterbach
Assignee (at issue)
Brown & Williamson Tobacco Corporation
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.