Granted Patent
Utility
US 5,730,840 · App. 08/748,813
Cigarette paper with improved ash characteristics
Inventors:
Vladimir Hampl, Jr., Larry D. Snow, Kerry Mahone, David P. Pozzetta
Patented Case
View Patent ↗
Granted: Mar 24, 1998
Filed: Nov 14, 1996
Inventors
Vladimir Hampl, Jr.
Larry D. Snow
Kerry Mahone
David P. Pozzetta
Assignee (at issue)
Schwietzer-Mauduit Inernational, 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.