Granted Patent
Utility
US 4,208,431 · App. 05/953,151
Long-lasting chewing gum having good processibility and method
Inventors:
Dominick R. Friello, Frank Witzel, K. Warren Clark, Donald A. M. Mackay
Patented Case
View Patent ↗
Granted: Jun 17, 1980
Filed: Oct 20, 1978
Inventors
Dominick R. Friello
Frank Witzel
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.