Smoke detector boundary

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Description

FIG. 1 is a bottom perspective view of a smoke detector boundary, showing our new design;

FIG. 2 is a side view thereof;

FIG. 3 is a top-down view thereof; and,

FIG. 4 is a bottom-up view thereof.

Claims

The ornamental design for a smoke detector boundary, as shown and described.

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Patent History
Patent number: D918756
Type: Grant
Filed: May 22, 2019
Date of Patent: May 11, 2021
Assignee: ANALOG DEVICES, INC. (Norwood, MA)
Inventors: Jiawen Bai (Brighton, MA), Ryan Frazier (Boston, MA), Ying Zhao (Andover, MA), Shrenik Deliwala (Andover, MA)
Primary Examiner: George D. Kirschbaum
Application Number: 29/692,090
Classifications
Current U.S. Class: Element Or Attachment (D10/121)