Granted Patent
Utility
US 5,476,354 · App. 08/217,171
Method and apparatus for opening soft-cup cigarette packs
Inventors:
Wallace O. Crain, Stephen E. Fischer
Patented Case
View Patent ↗
Granted: Dec 19, 1995
Filed: Mar 23, 1994
Inventors
Wallace O. Crain
Stephen E. Fischer
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.