Tracheostomy air filtration device

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Description

FIG. 1 is a back view of the invention.

FIG. 2 is a front view of the invention.

FIG. 3 is the top view of the invention.

FIG. 4 is bottom view of the invention.

FIG. 5 is the right side view of the invention; and,

FIG. 6 is the left side view of the invention.

Claims

The ornamental design for a tracheostomy air filtration device, as shown.

Referenced Cited
U.S. Patent Documents
4955373 September 11, 1990 Maguire, III
D429811 August 22, 2000 Bermudez
Patent History
Patent number: D456506
Type: Grant
Filed: Feb 2, 2001
Date of Patent: Apr 30, 2002
Inventor: Eileen Haas (Gibsonia, PA)
Primary Examiner: Ian Simmons
Application Number: 29/136,630
Classifications
Current U.S. Class: Inhalation Tube Or Mouthpiece Type (6) (D24/110.5)
International Classification: 2902;