PAPER CUP OF DUAL STRUCTURE AND METHOD FOR MANUFACTURING SAME
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United States of America Patent
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Oct 21, 2021
app pub date -
Sep 6, 2019
filing date -
Sep 7, 2018
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Abstract
A paper cup of a dual structure according to one embodiment of the present invention comprises: an inner paper part having a plurality of diameter adjusting portions formed at predetermined angle intervals on one surface; a drink receiving part formed extending from one end of the inner paper part and bending formed into the inner portion of the inner paper part; and a drinking part formed at a boundary between the inner paper part and the drink receiving part and curled in a radially outward direction of the drink receiving part.
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