Patent
   D631901
Priority
Jan 25 2010
Filed
Jan 25 2010
Issued
Feb 01 2011
Expiry
Feb 01 2025
Assg.orig
Entity
unknown
6
10
n/a
The ornamental design for a portable apparatus for determining leaks in air ducts, as shown and described.

FIG. 1 is an isometric view of the portable apparatus for determining leaks in air ducts looking downwardly on the top and front thereof;

FIG. 2 is an isometric view of the portable apparatus for determining leaks in air ducts looking downwardly on the top and rear thereof;

FIG. 3 an isometric view of the portable apparatus for determining leaks in air ducts looking upwardly on the bottom and rear thereof;

FIG. 4 is a front view of the portable apparatus for determining leaks in air ducts;

FIG. 5 is a top view of the portable apparatus for determining leaks in air ducts;

FIG. 6 is a bottom view of the portable apparatus for determining leaks in air ducts;

FIG. 7 is a side view of one side of the portable apparatus for determining leaks in air ducts;

FIG. 8 is a side view of the other side portable apparatus for determining leaks in air ducts; and,

FIG. 9 is a rear view of the portable apparatus for determining leaks in air ducts.

The broken lines in the drawings depict unclaimed environmental subject matter.

Brooks, Patrick J., Fortner, Shawn Michael, Czerpak, Andrew N.

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Patent Priority Assignee Title
3950983, Jul 05 1973 Treadwell Corporation Air leak detector
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6850164, Oct 03 2002 The Boeing Company Air leak detection system and method
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D511703, Apr 15 2004 Battery-powered leak detection device with floor-mounted water sensor and automatic shut-off valve
D570058, Apr 06 2007 Rotobrush Int'l LLC; Rotobrush International LLC Air duct cleaner tower and cart assembly
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jan 25 2010United McGill Corporation C(assignment on the face of the patent)
Mar 17 2010FORTNER, SHAWN M United McGill CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0241840598 pdf
Mar 23 2010CZERPAK, ANDREW N United McGill CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0241840598 pdf
Mar 30 2010BROOKS, PATRICK J United McGill CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0241840598 pdf
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