Expandable structure

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Description

FIG. 1 is a perspective view of an embodiment of an expandable structure showing my new design.

FIG. 2 is an enlarged perspective view of a front upper corner of the expandable structure of FIG. 1.

FIG. 3 is a perspective view of an embodiment of an expandable structure showing my new design; and,

FIG. 4 is a perspective view of an embodiment of an expandable structure showing my new design.

Background features are shown in broken lines for illustrative purposes only and form no part of the claimed design.

Claims

The ornamental design for an expandable structure, as shown and described.

Referenced Cited
U.S. Patent Documents
1066212 July 1913 Meltzer
3429092 February 1969 Hart et al.
5372447 December 13, 1994 Chung
5402608 April 4, 1995 Chu
5755063 May 26, 1998 Ohnishi et al.
7827738 November 9, 2010 Abrams et al.
D674916 January 22, 2013 Cetindag
8356446 January 22, 2013 Takeda et al.
8769886 July 8, 2014 Ohnishi et al.
Patent History
Patent number: D745703
Type: Grant
Filed: Jan 22, 2014
Date of Patent: Dec 15, 2015
Inventor: Nikolay Ivanov (Plovdiv)
Primary Examiner: Robert Delehanty
Application Number: 29/479,986
Classifications
Current U.S. Class: Framing Unit, E.g., Building Frame (11) (D25/61)