Breath test mouth-piece

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Description

FIG. 1 is a perspective view showing my new design; and

FIGS. 2, 3 and 4 are top, side and end views on an enlarged scale respectively showing my new design.

Referenced Cited
U.S. Patent Documents
2780220 February 1957 Dyer, Jr.
3822117 July 1974 Bergh et al.
4292978 October 6, 1981 Guth
Foreign Patent Documents
1032177 June 1966 GBX
Other references
  • Exhibit D, submitted Dec. 8, 1980, Mouthpiece. Exhibit E, submitted Dec. 8, 1980, Mouthpiece.
Patent History
Patent number: D272559
Type: Grant
Filed: Oct 3, 1980
Date of Patent: Feb 7, 1984
Inventor: Richard U. Guth (Harrisburg, PA)
Primary Examiner: Susan J. Lucas
Attorney: Thomas Hooker
Application Number: 6/193,642
Classifications
Current U.S. Class: D24/17
International Classification: D2402;