Mattress pad material

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Description

FIG. 1 is a top perspective view of mattress pad material showing my new design, the bottom being plain and unornamented and the ribbing being understood to extend uniformly through its indeterminate length which is shown broken-away; and

FIG. 2 is an enlarged fragmentary side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D32525 April 1900 Underwood
658789 October 1900 Legg
2785739 March 1957 McGregor, Jr. et al.
3047282 July 1962 Hardy
3507071 April 1970 Bryson
3885257 May 1975 Rogers
3940811 March 2, 1976 Tomikawa et al.
4070719 January 31, 1978 Morgan
4276666 July 7, 1981 Yamada
4320543 March 23, 1982 Dixon
4383342 May 17, 1983 Forster
4399574 August 23, 1983 Shuman
4603445 August 5, 1986 Spann
4605582 August 12, 1986 Sias et al.
4686724 August 18, 1987 Bedford
4686725 August 18, 1987 Mitchell
Foreign Patent Documents
1179789 December 1984 CAX
569690 1958 FRX
526407 1955 ITX
571845 January 1976 CHX
1559851 January 1980 GBX
2025234 January 1980 GBX
2084867 April 1982 GBX
Patent History
Patent number: D307688
Type: Grant
Filed: Dec 4, 1987
Date of Patent: May 8, 1990
Assignee: Span-America Medical Systems, Inc. (Greenville, SC)
Inventor: Daniel J. Schaefer (Greenville, SC)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Brian N. Vinson
Law Firm: Dority & Manning
Application Number: 7/129,089
Classifications
Current U.S. Class: D/6606