Vacuum flask
Description
The rear elevational view is omitted because it is a mirror image of the front elevational view.
The right side view is omitted because it is a mirror image of the left side view.
Claims
The ornamental design for a vacuum flask, as shown and described.
Referenced Cited
Patent History
Patent number: D984857
Type: Grant
Filed: Mar 19, 2021
Date of Patent: May 2, 2023
Assignee: Shanghai Xitiao Information Technology Co., Ltd. (Shanghai)
Inventors: Chian Sin Low (Shanghai), Inez Kai Ngee Low (Shanghai)
Primary Examiner: Terry A Wallace
Application Number: 29/775,027
Type: Grant
Filed: Mar 19, 2021
Date of Patent: May 2, 2023
Assignee: Shanghai Xitiao Information Technology Co., Ltd. (Shanghai)
Inventors: Chian Sin Low (Shanghai), Inez Kai Ngee Low (Shanghai)
Primary Examiner: Terry A Wallace
Application Number: 29/775,027
Classifications
Current U.S. Class:
D7/608;
D7/510