Granted Patent
Utility
US 4,911,184 · App. 07/239,914
Smoking articles
Inventors:
Paul D. Case, John A. Luke
Patented Case
View Patent ↗
Granted: Mar 27, 1990
Filed: Sep 2, 1988
Inventors
Paul D. Case
John A. Luke
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.