Granted Patent
Utility
US 6,193,060 · App. 09/504,922
Front opening cigarette box
Inventors:
David L. Roberts, Donald H. Evers
Patented Case
View Patent ↗
Granted: Feb 27, 2001
Filed: Feb 16, 2000
Inventors
David L. Roberts
Donald H. Evers
Assignee (at issue)
Philip Morris Inc.
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.