Spring

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Description

FIG. 1 is a top view of a spring showing my design;

FIG. 2 is a reduce scale left side elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a reduce scale right side elevation view thereof;

FIG. 6 is a reduce scale left side elevation view thereof;

FIG. 7 is a rear elevation view thereof;

FIG. 8 is a front elevation view thereof; and,

FIG. 9 is a rear, left-side perspective view thereof.

The broken lines showing the teeth in FIGS. 1 and 2 are included for illustrating environmental structure and form no part of the claimed design.

Claims

The ornamental design for a spring, as shown and described.

Referenced Cited
U.S. Patent Documents
3792529 February 1974 Goshgarian
4408989 October 11, 1983 Cleary
4592725 June 3, 1986 Goshgarian
D296359 June 21, 1988 Dixon
4815968 March 28, 1989 Keller
4854864 August 8, 1989 Cleary
5167499 December 1, 1992 Arndt et al.
5312247 May 17, 1994 Sachdeva et al.
D354569 January 17, 1995 Hilgers
5816800 October 6, 1998 Brehm et al.
7717707 May 18, 2010 Cope
20030104335 June 5, 2003 Chung
Patent History
Patent number: D636083
Type: Grant
Filed: Dec 8, 2009
Date of Patent: Apr 12, 2011
Inventor: Gurdev Dave Singh (Portland, OR)
Primary Examiner: Ian Simmons
Assistant Examiner: Wan Laymon
Attorney: Peter A Haas Esquire LLC
Application Number: 29/351,561
Classifications
Current U.S. Class: Orthodontic Appliance (D24/180)