Heat diffuser plate

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Description

FIG. 1 is a top plan view of a heat diffuser plate;

FIG. 2 is a perspective view of a heat diffuser plate; and,

FIG. 3 is a section view of a heat diffuser plate along line 3—3 of FIG. 1.

Claims

The ornamental design for a heat diffuser plate, as shown and described.

Referenced Cited
U.S. Patent Documents
D69852 April 1926 Stockstrom
D296409 June 28, 1988 Pomroy
D306118 February 20, 1990 Guerrero
D309234 July 17, 1990 Howell
D373285 September 3, 1996 Coroama et al.
D381554 July 29, 1997 Tichenor
D388659 January 6, 1998 Doyle et al.
D391449 March 3, 1998 Toth et al.
D392152 March 17, 1998 Rae
D444665 July 10, 2001 Maier
D497077 October 12, 2004 de Groote
D541486 April 24, 2007 Mahaffey
D568683 May 13, 2008 Glynn
D569497 May 20, 2008 Hoff et al.
Foreign Patent Documents
406472 August 2005 NZ
Patent History
Patent number: D603947
Type: Grant
Filed: Dec 6, 2007
Date of Patent: Nov 10, 2009
Inventors: Thomas Webb Tothill (Christchurch 8053), Anthony Peter Saunders (Ohoka, Kaiapoi, North Canterbury)
Primary Examiner: T. Chase Nelson
Assistant Examiner: Michael A Pratt
Attorney: Knobbe, Martens Olson & Bear LLP
Application Number: 29/298,542
Classifications
Current U.S. Class: Circular Horizontal Cross Section (D23/348)