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Publication numberUSD274753 S
Publication typeGrant
Application numberUS 06/422,860
Publication dateJul 17, 1984
Filing dateSep 24, 1982
Publication number06422860, 422860, US D274753 S, US D274753S, US-S-D274753, USD274753 S, USD274753S
InventorsBeverly W. Armstrong
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Middle ear ventilation tube
US D274753 S
Abstract  available in
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  1. The ornamental design for a middle ear ventilation tube, substantially as shown and described.

FIG. 1 is a top perspective view of a middle ear ventilation tube embodying the new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a perspective view taken in the direction of the arrow 5 of FIG. 3;

FIG. 6 is a top perspective view of a second embodiment of a middle ear ventilation tube embodying the new design;

FIG. 7 is an enlarged bottom perspective view of the embodiment of FIG. 5; and

FIG. 8 is a side elevational view of the embodiment of FIG. 5.

The front elevational view of FIG. 4 and the perspective view of FIG. 5 are also illustrative of the embodiment of FIGS. 6-8.

Non-Patent Citations
1American V. Mueller, Catalog No. 80, p. 680.
2Richards Microsurgery Catalog Price List No. 1584, Oct. 1, 1982, pp. 3-16.1.
3Xomed Inc. Catalog, pp. 4-10, 1979.
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US6367578Aug 11, 2000Apr 9, 2002Howard E. ShoemakerHearing aid sound seal device
US7097661Aug 3, 2001Aug 29, 2006Perry Microtube Pty LtdVentilation tube for a middle ear
US8480611 *Oct 2, 2012Jul 9, 2013Hasan M. Sh. Sh. AlshemariMiddle ear ventilation tube
US9011363Mar 13, 2013Apr 21, 2015Acclarent, Inc.Tympanic membrane pressure equalization tube
US20030187456 *Aug 3, 2001Oct 2, 2003Perry Christopher FrancisVentilation tube for a middle ear
U.S. ClassificationD24/173