Tongue retention device

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Description

FIG. 1 is a top view thereof;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side elevational thereof, the right side elevational view being identical thereto; and,

FIG. 5 is a back perspective view thereof.

Claims

The ornamental design for a tongue retention device, as shown and described.

Referenced Cited
U.S. Patent Documents
1499889 July 1924 Spiegelglas
3809094 May 1974 Cook
4169473 October 2, 1979 Samelson
4196724 April 8, 1980 Wirt et al.
4198967 April 22, 1980 Dror
4304277 December 8, 1981 Petrillo
4593696 June 10, 1986 Lloyd et al.
4676240 June 30, 1987 Gardy
D302036 July 4, 1989 George
D329901 September 29, 1992 Jackson
5373859 December 20, 1994 Forney
5390681 February 21, 1995 Daley
5649540 July 22, 1997 Alvarez et al.
5664946 September 9, 1997 Bedi
5682903 November 4, 1997 Meade
5921240 July 13, 1999 Gall
6076526 June 20, 2000 Abdelmessih
6244866 June 12, 2001 Campbell
6263877 July 24, 2001 Gall
Other references
  • Space Maintainers Laboratory, “Snoring and Obstructive Sleep Apnea”, vol. III, No. 1, 8 pages (1997).
Patent History
Patent number: D461240
Type: Grant
Filed: Feb 28, 2001
Date of Patent: Aug 6, 2002
Assignee: (Calgary)
Inventor: Leslie Dort (Calgary AB)
Primary Examiner: Ian Simmons
Attorney, Agent or Law Firms: Gowling Lafleur Henderson LLP, D. Doak Horne
Application Number: 29/137,894
Classifications
Current U.S. Class: Inhalation Tube Or Mouthpiece Type (6) (D24/110.5); Prophylactic Article (D24/105)
International Classification: 2902;