Granted Patent
Utility
US 5,833,368 · App. 08/873,816
Pull tab opening system for beverage container
Inventor:
Richard H. Kaufman
Patented Case
View Patent ↗
Granted: Nov 10, 1998
Filed: Jun 12, 1997
Inventor
Richard H. Kaufman
Assignee (at issue)
KRAFT FOODS HOLDINGS, 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.