Buoyancy chamber
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Description
The broken lines are for the purpose of illustrating portions of the buoyancy chamber that form no part of the claimed design.
Claims
The ornamental design for a buoyancy chamber, as shown and described.
Referenced Cited
U.S. Patent Documents
6000978 | December 14, 1999 | Donahue |
6321676 | November 27, 2001 | Kohnen |
D649924 | December 6, 2011 | Tureaud |
D909321 | February 2, 2021 | Lee |
D916979 | April 20, 2021 | Wei |
20180079086 | March 22, 2018 | Patel |
20220081081 | March 17, 2022 | Wei |
Patent History
Patent number: D976795
Type: Grant
Filed: Oct 22, 2020
Date of Patent: Jan 31, 2023
Assignee: SUBLUE UNDERWATER AI CO., LTD. (Tianjin)
Inventors: Jiancang Wei (Tianjin), Chunjiang Tian (Tianjin)
Primary Examiner: Cynthia M. Chin
Application Number: 29/755,733
Type: Grant
Filed: Oct 22, 2020
Date of Patent: Jan 31, 2023
Assignee: SUBLUE UNDERWATER AI CO., LTD. (Tianjin)
Inventors: Jiancang Wei (Tianjin), Chunjiang Tian (Tianjin)
Primary Examiner: Cynthia M. Chin
Application Number: 29/755,733
Classifications