Granted Patent
Utility
US 5,712,042 · App. 08/422,460
Second seal for closure liners
Inventor:
Michael R. Cain
Patented Case
View Patent ↗
Granted: Jan 27, 1998
Filed: Apr 17, 1995
Inventor
Michael R. Cain
Assignee (at issue)
Kerr 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.