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US 2020/0170429 A1Published application
Paper straw
OwnerMasami Kurodainventor
Life of this patent
Estimating the term…
Abstract
A paper straw 10 is comprised of an elongated paper tube 30 and a bending structure 20 composed in the tube 30. The bending structure 20 is comprised of a plural stiff part 21 and a plural soft part 22 alternately turn around thereof and make a tubular form. The paper tube is made from paper or the material made from plant. The stiff part 21 may have a large thickness and the soft part 22 may have a smaller thickness.
Claims6
A paper straw comprising;
- an elongated paper tube;
- and a bending structure composed in the tube;
- wherein said bending structure is comprised of stiff parts and soft parts alternately turn around thereof and form the tube.
A paper straw comprising;
- an elongated paper tube;
- and a bending structure composed in the tube;
- wherein said bending structure is comprised of spiral stiff parts and spiral soft parts alternately turn around thereof and form the tube.
Dependencies are inferred from the claim text.