Waste oil extraction machine

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Description

FIG. 1 is a perspective view of the waste oil extraction machine showing the design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right side elevation view thereof; and,

FIG. 5 is a left side elevation view thereof.

Claims

The ornamental design for a waste oil extraction machine, as shown.

Referenced Cited
U.S. Patent Documents
D89753 May 1933 Fox
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D248236 June 20, 1978 Senese
D261520 October 27, 1981 Johnson, Sr.
5154317 October 13, 1992 Roppolo, III
5494191 February 27, 1996 Benson
D395439 June 23, 1998 King et al.
5810213 September 22, 1998 Flores et al.
D470871 February 25, 2003 Burger et al.
D477620 July 22, 2003 Few
D478107 August 5, 2003 Few
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D504449 April 26, 2005 Butchko
D539822 April 3, 2007 Tseng
D572738 July 8, 2008 Giliberti
Patent History
Patent number: D654522
Type: Grant
Filed: Jul 21, 2011
Date of Patent: Feb 21, 2012
Inventor: Shaoyu Zhang (Guangdong)
Primary Examiner: Patricia Palasik
Attorney: Carstens & Cahoon, LLP
Application Number: 29/397,860
Classifications
Current U.S. Class: With Collecting Means (D15/152)