Granted Patent
Utility
US 5,878,549 · App. 08/938,826
Packages with controlled easy-open features
Inventors:
Richard Littmann, Ulrich Weingartner, Thomas S. Wildenberg, Jerry F. Jesse, Deane E. Galloway
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: Sep 29, 1997
Inventors
Richard Littmann
Ulrich Weingartner
Thomas S. Wildenberg
Jerry F. Jesse
Deane E. Galloway
Assignee (at issue)
American National Can Company
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.