Portable backup power supply
Description
The broken lines in the drawings illustrate the portions of the portable backup power supply, which form no part of the claimed design.
Claims
The ornamental design for a portable backup power supply, as shown and described.
Referenced Cited
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Patent History
Patent number: D995428
Type: Grant
Filed: Nov 18, 2022
Date of Patent: Aug 15, 2023
Assignee: Yongkang Longhai Battery Co., Ltd. (Jinhua)
Inventor: Longhai Zhang (Bijie)
Primary Examiner: Shawn T Gingrich
Assistant Examiner: Bryan N. Melvin
Application Number: 29/860,351
Type: Grant
Filed: Nov 18, 2022
Date of Patent: Aug 15, 2023
Assignee: Yongkang Longhai Battery Co., Ltd. (Jinhua)
Inventor: Longhai Zhang (Bijie)
Primary Examiner: Shawn T Gingrich
Assistant Examiner: Bryan N. Melvin
Application Number: 29/860,351
Classifications