Back sack

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Description

FIG. 1 is a front perspective view of a “back sack” showing my new design in a collapsed condition;

FIG. 2 is a front perspective view, shown expanded, and in an open position; and,

FIG. 3 is a rear perspective view, shown expanded, and in a closed position.

Claims

I claim the ornamental design for a back sack, as shown and described.

Referenced Cited
U.S. Patent Documents
688671 December 1901 Nason
3225806 December 1965 Pollak et al.
3254816 June 1966 Gray
3802613 April 1974 Droeger
4089447 May 16, 1978 Achmeteli
4213549 July 22, 1980 Hibbard
4273274 June 16, 1981 Freistadt
4674664 June 23, 1987 Simon
4974709 December 4, 1990 Furlow et al.
4988216 January 29, 1991 Lyman
D333565 March 2, 1993 Imbert
5570828 November 5, 1996 Lewis
5577652 November 26, 1996 Cooper
5653337 August 5, 1997 Cirigliano
5704528 January 6, 1998 Faure
D390003 February 3, 1998 Ng
D391755 March 10, 1998 Grimm et al.
5957354 September 28, 1999 Mentken
D415344 October 19, 1999 Leibowitz
5975392 November 2, 1999 Miller et al.
D428249 July 18, 2000 Ash, Jr.
6112959 September 5, 2000 Townsend
6164509 December 26, 2000 Gausling et al.
D439040 March 20, 2001 Vazquez
Patent History
Patent number: D458018
Type: Grant
Filed: Feb 17, 2000
Date of Patent: Jun 4, 2002
Inventor: Robert Mentken (New York, NY)
Primary Examiner: Celia Murphy
Application Number: 29/118,862
Classifications
Current U.S. Class: D3/217; D3/216
International Classification: 0301;