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.:
Date of Patent:
Jul. 04, 2023
Filed:
Jul. 11, 2019
Applicant:
Tokan Kogyo Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
TOKAN KOGYO CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B31B 50/59 (2017.01); B31B 120/10 (2017.01);
U.S. Cl.
CPC ...
B31B 50/592 (2018.05); B31B 2120/10 (2017.08);
Abstract
A method for producing a paper lid includes a first step of holding down an outer edge area of a blank that is mainly made of paper, a second step of forming an inner fitting portion in a central area of the blank, while holding down the outer edge area, and a third step of forming an outer fitting portion in the central area, where the inner fitting portion is formed, while holding down the outer edge area.