Granted Patent
Utility
US 5,921,249 · App. 08/892,071
High and low porosity wrapping papers for smoking articles
Inventor:
Vladimir Hampl, Jr.
Patented Case
View Patent ↗
Granted: Jul 13, 1999
Filed: Jul 14, 1997
Inventor
Vladimir Hampl, Jr.
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.