The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9243369 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 26, 2016

Filed:

Jun. 05, 2014
Applicant:

Yu-chun Huang, Taichung, TW;

Inventor:

Yu-Chun Huang, Taichung, TW;

Assignee:

Other;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21J 7/00 (2006.01); B65D 1/22 (2006.01);
U.S. Cl.
CPC ...
D21J 7/00 (2013.01); B65D 1/225 (2013.01);
Abstract

A method for making a shoebox includes preparing a pulp tank and a mold which includes a first upper mold, a first lower mold and a second lower mold; a step of forming a flat sheet of a semi-final product which includes closing the first upper and lower molds to produce the semi-final product; a step of vacuum suction and mold movement which includes vacuum sucking the semi-final product to the first upper mold, moving the first upper mold to above the second lower mold; a step of hot pressing of the semi-final product into a flat sheet of a final product with patterns and fold lines by closing and heating the first upper mold and the second lower mold; and a step of separating the first upper mold and the second lower mold, taking out the final product and folding it into a shoebox.


Find Patent Forward Citations

Loading…