Granted Patent
Utility
US 6,357,614 · App. 09/381,731
Non-refilling devices for containers
Inventor:
Peter Douglas Kerr
Patented Case
View Patent ↗
Granted: Mar 19, 2002
Filed: Sep 23, 1999
Inventor
Peter Douglas Kerr
Assignee (at issue)
Crown Cork & Seal Technologies Corporation
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.