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:
May. 12, 2026
Filed:
Apr. 26, 2022
Applicant:
Yoshino Kogyosho Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
YOSHINO KOGYOSHO CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 49/22 (2006.01); B29C 49/00 (2006.01);
U.S. Cl.
CPC ...
B29C 49/22 (2013.01); B29C 49/071 (2022.05); B29C 2949/0715 (2022.05);
Abstract
A preform for forming a double container configured to form a double container including an inner container and an outer container. The preform includes a bottomed cylindrical inner preform configured to form the inner container and a bottomed cylindrical outer preform configured to form the outer container. The inner preform is inserted into the outer preform, a longitudinal groove is formed in an inner peripheral surface of a mouth portion of the outer preform, an outside air introduction hole opens in a longitudinal groove, and a flange portion is provided in a mouth portion of the inner preform.