Granted Patent
Utility
US 6,612,429 · App. 09/887,212
Flip open package with microencapsulated flavor release
Inventor:
Robert P. Dennen
Patented Case
View Patent ↗
Granted: Sep 2, 2003
Filed: Jun 22, 2001
Inventor
Robert P. Dennen
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.