Gas saving grate

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Description

FIG. 1 is a view in perspective of a gas saving grate showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof; and

FIG. 4 is a side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D32163 January 1900 Mummery
D32164 January 1900 Mummery
D97336 October 1935 Richheimer
D136855 December 1943 Markesinis
D143003 November 1945 Hoiland
D209256 November 1967 Richardson
D215251 September 1969 Berlik et al.
698507 April 1902 Jeha
793379 June 1905 Jones
834733 October 1906 Jeha
881199 March 1908 Palmer
1239150 September 1917 Williams et al.
1346761 July 1920 Moore
1353265 September 1920 Oshige
1881428 October 1932 Finch
2732838 January 1956 Honer
Foreign Patent Documents
168974 July 1934 CHX
Patent History
Patent number: D250931
Type: Grant
Filed: May 11, 1976
Date of Patent: Jan 30, 1979
Inventor: Ronald T. Pierce (Ambler, PA)
Primary Examiner: James R. Largen
Application Number: 5/685,435
Classifications
Current U.S. Class: D/7136
International Classification: D0704;