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Patent
D606439
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Priority
Jul 22 2008
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Filed
Jan 21 2009
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Issued
Dec 22 2009
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Expiry
Dec 22 2023
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Assg.orig
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Entity
unknown
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6
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9
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n/a
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The ornamental design for a sight glass applied in refrigeration system, substantially as shown and described.
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FIG. 1 is a front view of a sight glass applied in refrigeration system comprising a new, original and ornamental design;
FIG. 2 is a rear view of a sight glass applied in refrigeration system comprising the new, original and ornamental design;
FIG. 3 is a left-hand side view of a sight glass applied in refrigeration system comprising the new, original and ornamental design;
FIG. 4 is a right-hand side view of a sight glass applied in refrigeration system comprising the new, original and ornamental design;
FIG. 5 is a top view of a sight glass applied in refrigeration system comprising the new, original and ornamental design;
FIG. 6 is a bottom view of a sight glass applied in refrigeration system comprising the new, original and ornamental design; and,
FIG. 7 is a perspective view of a sight glass applied in refrigeration system comprising the new, original and ornamental design.
Yan, Miao
Patent |
Priority |
Assignee |
Title |
4064826, |
May 03 1976 |
Emerson Electric Co. |
Refrigerant liquid indicator |
4888990, |
May 02 1988 |
GALA INDUSTRIES, INC. |
Sight glass apparatus |
5383338, |
Dec 17 1993 |
Emerson Electric Co |
In-line sight indicator |
6116274, |
Jun 10 1999 |
SEALED UNIT PARTS CO , INC |
Sight glass with check valve and filter |
7540187, |
Jul 17 2006 |
|
Sight glass apparatus |
D412454, |
Apr 16 1998 |
United Brass Works, Inc. |
Sight glass for sprinkler system lines |
D495265, |
Feb 14 2003 |
DYMCO CO , LTD |
Lower body of float gauge head |
D519867, |
May 30 2003 |
DYMCO CO , LTD |
Lower body of float guage head |
EP866290, |
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Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a