Enzyme-containing denture cleanser tablet
Patent 3962107 Issued on June 8, 1976. Estimated Expiration Date: 
June 8, 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.
June 8, 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.Patent References 3243377 3372125 3607759 3630924 3696188 3723327 InventorsApplicationNo. 482404 filed on 06/24/1974US Classes:510/117, Gas generating (e.g., effervescent, etc.)424/401, Cosmetic, antiperspirant, dentifrice424/466, Effervescent424/50, Ferment containing (e.g., enzymes, bacteria, etc.)510/108, CLEANING COMPOSITIONS OR PROCESSES OF PREPARING (E.G., SODIUM BISULFATE COMPONENT, ETC.)510/374, With enzyme component of specific activity or source (e.g., protease, of bacterial origin, etc.)510/439, Package or dosing unit (e.g., sachet, wrapped cake soap, etc.)510/466, Silicon in the component510/475, Synthetic polymer or natural rubber (other than polyether, such as polyethylene glycol, alkylene oxide condensation products, etc.)510/478, With alkali metal carbonate or bicarbonate component510/505Oxygen in the component (except substituted triazines)ExaminersPrimary: Schultz, William H.AbstractA water-soluble effervescent, layered denture cleanser tablet containing one or more enzymes in one layer and one or more active oxygen compounds in the other layer and in which the enzyme layer is faster dissolving than the active oxygen layer and is substantially completely dissolved before the dissolution of the active oxygen layer reaches a level which would inactivate the enzyme. | |
