Face mask

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Description

FIG. 1 is a perspective view of the face mask showing my new design;

FIG. 2 is a side view thereof;

FIG. 3 is a front plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
RE24549 October 1950 Halliczer
D130685 December 1941 Lehmborg
D143781 February 1946 Yant
D161337 December 1950 Hill
D195612 July 1963 Liloia et al.
D248497 July 11, 1978 Slosek
2376871 May 1945 Fink
2578007 December 1951 Hill
2915060 December 1959 Miner
3220409 November 1965 Liloia et al.
3333585 August 1967 Barghini et al.
3620214 November 1971 Thackston
4248220 February 3, 1981 White
4319567 March 16, 1982 Magidson
Foreign Patent Documents
780710 August 1957 GBX
Other references
  • American Scientific Products Catalog 1981-1982, pp. 883, 884, Item S1377-1. Fisher Scientific Catalog 1981 .COPYRGT.1980 Fisher Scientific Co., No. 1042, 1043, Item 11-75-54 Mask. Sargent-Welsch Catalog 128 .COPYRGT.1971, 76, 79, pp. 1085, 1086. Exhibit A, Contour Mask, Items S-1377-1, 1377-2, 1377-3. Exhibit B, Surgical Masks-Amer. Hosp. Supply Section C-22, 23, & Aseptox Mask-mask reproduction substantially black. Exhibit C-Amer. Hosp. Supply Co. Convention 9/71-Pliable Plastic Mask. Exhibit D, Amer. Hosp. Supply Co. Convention, Gen. Purpose Masks.
Patent History
Patent number: D273145
Type: Grant
Filed: Dec 14, 1981
Date of Patent: Mar 20, 1984
Assignee: American Hospital Supply Corporation (Evanston, IL)
Inventor: Lawrence G. Ponsi (Highland Park, IL)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Horace B. Fay
Attorney: Mary Jo Kanady
Application Number: 6/330,421
Classifications
Current U.S. Class: D29/8