Patent
   D371606
Priority
Aug 08 1994
Filed
Aug 08 1994
Issued
Jul 09 1996
Expiry
Jul 09 2010
Assg.orig
Entity
unknown
6
3
n/a
The ornamental design for an ear ventilation tube, as shown.

FIG. 1 is a top view of an ear ventilation tube, showing my new design, the bottom view being identical;

FIG. 2 is a front elevational view thereof, the rear elevational view being identical;

FIG. 3 is a side view thereof; and,

FIG. 4 is a side elevational view taken from the opposite side of FIG. 3.

Doyle, Donald E.

Patent Priority Assignee Title
10835422, Apr 10 2012 TUSKER MEDICAL, INC. Tympanic membrane pressure equalization tube
6042574, Mar 11 1998 Oval ventilation ear tube
7097661, Aug 03 2001 Perry Microtube Pty Ltd Ventilation tube for a middle ear
9011363, Apr 10 2012 TUSKER MEDICAL, INC Tympanic membrane pressure equalization tube
9907700, Apr 10 2012 TUSKER MEDICAL, INC Tympanic membrane pressure equalization tube
D707822, Apr 10 2012 TUSKER MEDICAL, INC Tympanic membrane pressure equalization tube
Patent Priority Assignee Title
4775370, May 13 1986 Middle ear drum ventilation and drainage technique
239330,
D274753, Sep 24 1982 Middle ear ventilation tube
/
Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 23 1996DOYLE, DONALD E DOYLE FAMILY TRUST, THEASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0079340060 pdf
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule