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Patent
   D575213
Priority
Sep 19 2007
Filed
Sep 19 2007
Issued
Aug 19 2008
Expiry
Aug 19 2022
Inventors
Kryssing, …
Assg.orig
KOOKS CUST…
Assg.curr
Kooks Cust…
Entity
unknown
Referenced by
8
References
4
Maint.:
n/a
The ornamental design for a quad core muffler, as shown and described.

FIG. 1 is a front view of a quad core muffler round in accordance with the present invention;

FIG. 2 is a top view thereof; and,

FIG. 3 is a bottom view thereof.
INVENTORS:

Kryssing, Sr., George, Kryssing, Jr., George

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
8439159, Aug 30 2010 BORLA, ALYSE; BORLA, DAVID Exhaust muffler for internal combustion engines
D612313, Jan 27 2009 Brock Davidson Enterprises Motorcycle megaphone exhaust system discharge opening
D612784, Jul 08 2009 Resonance chamber disposed about a conduit contour of an emission system
D613223, Jul 08 2009 Resonance chamber axially disposed on an emission system conduit
D617705, Jun 08 2009 Carriage Works, Inc. Exhaust tip
D802507, Feb 18 2016 Muffler
D832756, Apr 19 2017 Exhaust pipe
D961474, Jul 09 2021 Muffler
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
1027469,
5198625, Mar 25 1991 Exhaust muffler for internal combustion engines
20010037836,
164960,
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Sep 17 2007KRYSSING, JR , GEORGEKOOKS CUSTOM HEADERS, INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0199210361 pdf
Sep 18 2007KRYSSING, SR , GEORGEKOOKS CUSTOM HEADERS, INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0199210361 pdf
Sep 19 2007Kooks Custom Headers, Inc.(assignment on the face of the patent)
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