Granted Patent
Utility
US 4,301,178 · App. 06/145,942
Liquid-filled chewing gum and method
Inventors:
Frank Witzel, Wayne J. Puglia, K. Warren Clark, Donald A. M. Mackay
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: May 2, 1980
Inventors
Frank Witzel
Wayne J. Puglia
K. Warren Clark
Donald A. M. Mackay
Assignee (at issue)
Lifesavers LLC
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.