Granted Patent
Utility
US 5,776,631 · App. 08/568,160
Safety snap-through seal for galvanic cells
Inventor:
Xi Wu
Patented Case
View Patent ↗
Granted: Jul 7, 1998
Filed: Dec 6, 1995
Inventor
Xi Wu
Assignee (at issue)
Eveready Battery Company, 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.