|
PTO
Wrapper
PDF
|
|
Dossier
Espace
Google
|
|
|
|
Patent
D622214
|
|
Priority
Nov 12 2003
|
|
Filed
Mar 01 2010
|
|
Issued
Aug 24 2010
|
|
Expiry
Aug 24 2024
|
|
|
|
Assg.orig
|
|
|
|
Entity
unknown
|
|
1
|
|
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 |
| 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 |
| Date |
Maintenance Fee Events |
n/a
| Date |
Maintenance Schedule |
n/a