Granted Patent
Utility
US 5,873,372 · App. 08/854,648
Process for steam explosion of tobacco stem
Inventors:
Rufus H. Honeycutt, Elliott S. Sadle, Elmer F. Litzinger, Dennis M. Boyle
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: May 12, 1997
Inventors
Rufus H. Honeycutt
Elliott S. Sadle
Elmer F. Litzinger
Dennis M. Boyle
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.