Patent
   D613687
Priority
Nov 12 2003
Filed
May 05 2009
Issued
Apr 13 2010
Expiry
Apr 13 2024
Assg.orig
Entity
unknown
1
21
n/a
The ornamental design for an electrical transformer, as shown and described.

This application is also related to co-pending U.S. application Ser. No. 29/275,260, filed Dec. 19, 2006.

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

FIG. 2 is a side elevation view thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a perspective view thereof.

The broken lines shown represent unclaimed subject matter and form no part of the claimed design.

Thorsteinsson, Sigurdur, Stryken, Egil, Tinggren, Richard

Patent Priority Assignee Title
D865669, Sep 23 2016 SIEMENS ENERGY GLOBAL GMBH & CO KG Transformer
Patent Priority Assignee Title
2325470,
2947957,
3479563,
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
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
///
Executed onAssignorAssigneeConveyanceFrameReelDoc
May 05 2009ABB T&D Technology, Ltd.(assignment on the face of the patent)
May 05 2009ABB Technology AG(assignment on the face of the patent)
May 09 2016ABB Technology LtdABB Schweiz AGMERGER SEE DOCUMENT FOR DETAILS 0406210633 pdf
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule