US Patent 7497349 Travel mug

A travel mug that protects the user from beverage leaks has an outer sidewall with a top rim that defines an open mouth from which a beverage can be consumed, an inner sidewall having an open top end for receiving a lid for closing the open top end, and a fluid reservoir between the outer sidewall and the inner sidewall, the fluid reservoir having a bottom surface that is spaced beneath the open top end of the inner sidewall.