Granted Patent
Utility
US 6,318,894 · App. 09/684,549
Resealable flexible packages having hook design tear line
Inventor:
Jerome W. Derenthal
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: Oct 6, 2000
Inventor
Jerome W. Derenthal
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.