Granted Patent
Utility
US 5,094,863 · App. 07/690,386
Food package with rip-cord opener
Inventor:
Dawn M. Vandenburg
Patented Case
View Patent ↗
Granted: Mar 10, 1992
Filed: Apr 24, 1991
Inventor
Dawn M. Vandenburg
Assignee (at issue)
JAMES RIVER CORPORATION OF VIRGINIA
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.