Granted Patent
Utility
US 5,577,626 · App. 08/420,204
Closure with opening assist feature
Inventors:
James W. Henkel, Robert D. Rohr
Patented Case
View Patent ↗
Granted: Nov 26, 1996
Filed: Apr 11, 1995
Inventors
James W. Henkel
Robert D. Rohr
Assignee (at issue)
AptarGroup, 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.