Granted Patent
Utility
US 5,377,698 · App. 08/055,736
Reconstituted tobacco product
Inventors:
Elmer F. Litzinger, Barid Baran Chakraborty, William R. Conway
Patented Case
View Patent ↗
Granted: Jan 3, 1995
Filed: Apr 30, 1993
Inventors
Elmer F. Litzinger
Barid Baran Chakraborty
William R. Conway
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.