Granted Patent
Utility
US 6,779,529 · App. 10/178,713
Cigarette filter
Inventors:
James Neil Figlar, Brian Edward Tucker, F. Kelley St. Charles
Patented Case
View Patent ↗
Granted: Aug 24, 2004
Filed: Jun 24, 2002
Inventors
James Neil Figlar
Brian Edward Tucker
F. Kelley St. Charles
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.