Sight glass
USD1087806SActive Publication Date: 2025-08-12AMTROL LICENSING INC
Patent Information
- Application Number
- US29/916961
- Authority / Receiving Office
- US · United States
- Patent Type
- Designs(United States)
- Current Assignee / Owner
- Filing Date
- 2023-11-16
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2040-08-12
Smart Images

Figure USD1087806-D00000_ABST
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Description
[0001] FIG. 1 is a top perspective view of an embodiment of a sight glass showing a new design;
[0002] FIG. 2 is a front view thereof;
[0003] FIG. 3 is a left side view thereof;
[0004] FIG. 4 is a right side view thereof;
[0005] FIG. 5 is a top view thereof;
[0006] FIG. 6 is a bottom view thereof; and,
[0007] FIG. 7 is a top perspective view thereof.
[0008] The broken lines depict environmental structures that form no part of the claimed design.
[0009] The dash-dot-dash lines depict boundaries of enlarged views that form no part of the claimed design.
Claims
The ornamental design for a sight glass, as shown and described.
Citation Information
Patent Citations
Heating system pressure vessel - has leaking water collection point at which sight glass is inserted
DE2911303A1
pressure expansion vessel
DE9205894U1
Closed expansion tank for fluid-filled installations
EP0684429B1
Sight glass closure and manufacturing process
LU101725B1
Sight glass applied in refrigeration system
USD606439S