Grooved piston

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Description

FIG. 1 is a perspective view of a top perspective view showing the new design for a grooved piston;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof.

The portions of the grooved piston shown in broken lines form no part of the claimed design.

Claims

The ornamental design for a grooved piston, as shown and described.

Referenced Cited
U.S. Patent Documents
3998224 December 21, 1976 Chiquiar-Arias
4252118 February 24, 1981 Richard et al.
4660569 April 28, 1987 Etherington
4826483 May 2, 1989 Molnar, IV
5021047 June 4, 1991 Movern
5042695 August 27, 1991 Battegazzore
5183466 February 2, 1993 Movern
5360146 November 1, 1994 Ikushima
5453093 September 26, 1995 Haining
5738655 April 14, 1998 Vallelunga et al.
5865803 February 2, 1999 Major
6503084 January 7, 2003 Evers et al.
6572565 June 3, 2003 Daley et al.
6632198 October 14, 2003 Caizza
6916308 July 12, 2005 Dixon et al.
7101351 September 5, 2006 Crawford et al.
7128246 October 31, 2006 Raia et al.
D581528 November 25, 2008 Sudo
D583938 December 30, 2008 Sudo
7503905 March 17, 2009 Jessop et al.
7547297 June 16, 2009 Brinkhues
20020077598 June 20, 2002 Yap et al.
20030233075 December 18, 2003 Huegli
20050137533 June 23, 2005 Sudo et al.
20060178643 August 10, 2006 Sudo et al.
20070078406 April 5, 2007 Lee
20070078407 April 5, 2007 Huang
20070167910 July 19, 2007 Tennican et al.
20070250004 October 25, 2007 Tung
20080097387 April 24, 2008 Spector
20080154192 June 26, 2008 Schraga
Foreign Patent Documents
1475430 June 1977 GB
Patent History
Patent number: D621037
Type: Grant
Filed: Aug 4, 2009
Date of Patent: Aug 3, 2010
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Steven J. Maxa (Burnsville, MN), Adam J. Cernohous (River Falls, WI)
Primary Examiner: T. Chase Nelson
Assistant Examiner: Eric L Goodman
Attorney: Philip P. Soo
Application Number: 29/341,358
Classifications
Current U.S. Class: Syringe, Catheter Or Needle Component (22) (D24/130)