Double-layer vacuum flask
Latest Changzhou Beitesida Electronic Commerce Co., Ltd Patents:
Description
The broken lines depict elements of the article that form no part of the claimed design.
Claims
The ornamental design for a double-layer vacuum flask, as shown and described.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
Other references
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Patent History
Patent number: D1044407
Type: Grant
Filed: Feb 10, 2022
Date of Patent: Oct 1, 2024
Assignee: Changzhou Beitesida Electronic Commerce Co., Ltd (Changzhou)
Inventor: Chao He (Changzhou)
Primary Examiner: Michael C Stout
Assistant Examiner: Tia Ruth-Renee Polidori
Application Number: 29/791,815
Type: Grant
Filed: Feb 10, 2022
Date of Patent: Oct 1, 2024
Assignee: Changzhou Beitesida Electronic Commerce Co., Ltd (Changzhou)
Inventor: Chao He (Changzhou)
Primary Examiner: Michael C Stout
Assistant Examiner: Tia Ruth-Renee Polidori
Application Number: 29/791,815
Classifications
Current U.S. Class:
D7/510;
D7/529