Granted Patent
Utility
US 6,568,403 · App. 09/882,812
Paper wrapper for reduction of cigarette burn rate
Inventors:
Vladimir Hampl, Jr., Larry D. Snow, Tom Kraker
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Jun 15, 2001
Inventors
Vladimir Hampl, Jr.
Larry D. Snow
Tom Kraker
Assignee (at issue)
Schweitzer Mauduit International, Inc.
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.