Although it is rapidly being replaced by boring plain styrofoam or other plasticky rectangular boxes, for many years Chinese restaurants provided a distinctive trapezoidal-shaped paper 'pail' for patrons to take leftover food home.
 

What were the origins of this iconic object that characterized Chinese restaurants, second only to the fortune cookie?  I stumbled upon the following explanation.  In 1894 Frederick Weeks Wilcox patented containers he created by folding a single sheet of paper to ...

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