Granted Patent
Utility
US 6,779,531 · App. 09/446,232
Smoking material
Inventors:
Philip John Biggs, Richard Thomas Gilbert, Kevin McAdam, Bhasker Natarajan
Patented Case
View Patent ↗
Granted: Aug 24, 2004
Filed: Feb 14, 2000
Inventors
Philip John Biggs
Richard Thomas Gilbert
Kevin McAdam
Bhasker Natarajan
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.