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Patent
   D581090
Priority
Dec 30 2005
Filed
Apr 07 2008
Issued
Nov 18 2008
Expiry
Nov 18 2022
Inventors
Colleran, …
Assg.orig
ACOUSTICS …
Assg.curr
ACOUSTICS …
Entity
unknown
Referenced by
48
References
18
Maint.:
n/a
The ornamental design for a pyramidal diffuser, as shown and described.

FIG. 1 is a top and left front perspective view of a pyramidal diffuser, showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front side elevational view thereof, the left and right side views thereof being mirror images of the front view shown; and,

FIG. 4 is a bottom plan view thereof.

The broken lines adjacent to the surfaces containing shading, which show the boundary of the claimed design, and all other portions of the design shown in broken lines shown in the figures form no part of the claimed design.
INVENTORS:

Colleran, Jr., C. Nicholas, Colleran, Samuel J., Larkin, Ryan L.

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D821636, Nov 28 2016 Osram Sylvania Inc. Headlamp optic
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D938070, Jul 27 2020 ARKTURA LLC Architectural fixture
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ER1897,
ER580,
ER8805,
ER9501,
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ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 07 2008ACOUSTICS FIRST CORPORATION(assignment on the face of the patent)
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
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