Transformer
Patent D633438 Issued on March 1, 2011. Estimated Expiration Date: 
March 1, 2025. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
March 1, 2025. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2325470 3056893 D245325 D254846 D289033 D334732 In-wall electronic timer D433995 Transformer providing low output voltage Convenience safety timer InventorsAssigneeApplicationNo. 29349419 filed on 03/31/2010US Classes:D13/110Transformer, rectifier or casing therefor (3)ExaminersPrimary: Deshmukh, PrabhakarAssistant: Holland, Derrick Attorney, Agent or FirmClaimsCLAIM We claim the ornamental design for a transformer, as shown and described. DescriptionFIG. 1 is a perspective view of the transformer showing the new design, with the front panel of the transformer open; FIG. 2 is a front elevational view of the transformer depicted in FIG. 1; FIG. 3 is a rear elevational view of the transformer depicted in FIG. 1; FIG. 4 is a right side elevational view of the transformer depicted in FIG. 1, FIG. 5 is a left side elevational view of the transformer depicted in FIG. 1; FIG. 6 is a top plan view of the transformer depicted in FIG. 1; and FIG. 7 is a bottom plan view of the transformer depicted in FIG. 1. FIG. 8 is a perspective view of the transformer showing the new design, with the front panel of the transformer closed; FIG. 9 is a front elevational view of the transformer depicted in FIG. 8; FIG. 10 is a rear elevational view of the transformer depicted in FIG. 8; FIG. 11 is a right side elevational view of the transformer depicted in FIG. 8, FIG. 12 is a left side elevational view of the transformer depicted in FIG. 8; FIG. 13 is a top plan view of the transformer depicted in FIGS. 8; and, FIG. 14 is a bottom plan view of the transformer depicted in FIG. 8. The broken lines are for illustrative purposes only and form no part of the claimed design. Other References
Field of SearchTransformer, rectifier or casing therefor (3)ENERGY CONVERSION OR TRANSFORMATION Element or attachment Voltage regulator CASING OR ENCLOSURE NOT ELSEWHERE SPECIFIED MISCELLANEOUS Electrical housing Vented casing Ventilating passages (e.g., by coil section or core part spacers) WITH OUTER CASING OR HOUSING Internal inductor support Fluid insulation Exposed core portions With connector WINDING WITH TERMINALS, TAPS, OR COIL CONDUCTOR END ANCHORING MEANS Transformer type Transformer Power packs 174/52R |
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