Patent 3957964 Issued on May 18, 1976. Estimated Expiration Date: May 18, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
424/10.4, Taste or smell or chemical irritation to the eye, nose, or mouth feature424/49, DENTIFRICES (INCLUDES MOUTH WASH)426/533, Reaction flavor per se, or containing reaction flavor improver of unknown or undefined chemical constitution426/534Flavor per se, or containing flavor or flavor improver of identifiable organic chemical constitution
A dentifrice which releases bursts of flavor during use and includes a minor proportion of an encapsulated flavoring material in a dentifrice. The encapsulated flavoring is maintained separate from the dentifrice base during storage but is released into it by breaking of the encapsulating shells or coating when the dentifrice is used.