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Patent
D597942
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Priority
Oct 08 2008
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Filed
Dec 31 2008
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Issued
Aug 11 2009
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Expiry
Aug 11 2023
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Assg.orig
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Entity
unknown
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6
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8
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n/a
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The ornamental design for a step-up transformer, as shown.
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FIG. 1 is a perspective view of the front and right side of a step-up transformer showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
Koizumi, Yosuke
Patent |
Priority |
Assignee |
Title |
3056893, |
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|
|
199567, |
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|
|
D261640, |
Dec 08 1978 |
TRANSFORMATOREN UNION AKTIENGESELLSCHAFT, A GERMAN CORP |
Coupling transformer |
D289033, |
Mar 30 1984 |
Sangamo Weston, Inc. |
Voltage transformer |
D339323, |
Apr 18 1988 |
Marelco Power Systems, Inc. |
Lighting transformer disconnect |
D392940, |
Jul 30 1996 |
Davinci Industries Inc. |
Transformer |
D433993, |
May 27 1999 |
|
Transformer |
D433995, |
Sep 17 1999 |
TECHNOMAGNET LTD |
Lighting transformer |
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a