Granted Patent
Utility
US 6,239,712 · App. 09/294,523
Talking container closure and package incorporating same
Inventor:
Wesley S. Hawk
Patented Case
View Patent ↗
Granted: May 29, 2001
Filed: Apr 20, 1999
Inventor
Wesley S. Hawk
Assignee (at issue)
Owens-Illinois Closure 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.