Patent
   D635091
Priority
Nov 12 2003
Filed
Jul 22 2010
Issued
Mar 29 2011
Expiry
Mar 29 2025
Assg.orig
Entity
unknown
0
23
n/a
The ornamental design for an electrical transformer, as shown and described.

FIG. 1 is a front elevation view of an electrical transformer showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevation view thereof; and,

FIG. 4 is a perspective view thereof.

Thorsteinsson, Sigurdur, Stryken, Egil, Tinggren, Richard

Patent Priority Assignee Title
Patent Priority Assignee Title
2325470,
2947957,
3479563,
3541487,
3781741,
4027279, Jul 21 1975 Device for attaching leads to a transformer or the like
4257027, Nov 27 1978 Shimoda Electric Company Transformer bobbin assembly
6185811, Sep 06 1996 Hammond Manufacturing Company Method for making a transformer
188248,
188249,
195975,
202045,
210130,
219923,
222480,
D254846, Jun 06 1978 General Electric Company Electrical transformer or similar article
D257342, Dec 11 1978 Electrical transformer
D259040, Apr 27 1978 General Electric Company Vaporization cooled transformer or similar article
D261640, Dec 08 1978 TRANSFORMATOREN UNION AKTIENGESELLSCHAFT, A GERMAN CORP Coupling transformer
D290456, Dec 27 1983 Marelco Power Systems, Inc. Transformer
D294565, Mar 30 1984 SCHLUMBERGER RESOURCE MANAGEMENT SERVICES, INC Voltage transformer
D324371, Jul 11 1988 Societe pour l'Application de l'Optique et de l'Electronique a la Electric transformer
D348868, Apr 26 1993 Top Gulf Coast Corporation Electrical transformer
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Jul 22 2010ABB Technology AG(assignment on the face of the patent)
May 09 2016ABB Technology LtdABB Schweiz AGMERGER SEE DOCUMENT FOR DETAILS 0406210633 pdf
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