Patent 4537689 Issued on August 27, 1985. Estimated Expiration Date: December 19, 2003. 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.
An oral lubricant effective in reducing the discomfort associated with the wearing of a mouth protector during periods of activity consisting essentially of a thickening agent, a preservative, a flavoring agent, a sweetener, an emulsifier, if needed, and a liquid diluent.
Other References
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