Granted Patent
Utility
US 5,875,907 · App. 08/877,292
Tamper-evident dispensing closure for a container
Inventor:
Dieter F. Lay
Patented Case
View Patent ↗
Granted: Mar 2, 1999
Filed: Jun 17, 1997
Inventor
Dieter F. Lay
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.