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Patent
   D362299
Priority
Mar 01 1993
Filed
Apr 09 1993
Issued
Sep 12 1995
Expiry
Sep 12 2009

TERM.DISCL.
Inventors
Lennartsso…
Assg.orig
Lindab AB
Assg.curr
Lindab AB
Entity
unknown
Referenced by
38
References
37
Maint.:
n/a
The ornamental design for a circular sleeve coupling, as shown and described.

FIG. 1 is a perspective view of a circular sleeve coupling, showing our new design, as seen obliquely from the front;

FIG. 2 is a perspective view of the sleeve coupling, as seen obliquely from the back;

FIG. 3 is a side elevation of the sleeve coupling, the opposite side being a mirror image thereto; and,

FIG. 4 is a front view of the sleeve coupling.
INVENTORS:

Lennartsson, Kenneth, Sonden, Carl-Gustaf

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
7523964, Mar 24 2005 Langdon Incorporated Sealing gasket for ventilation duct system
D427667, May 20 1999 Eastern Sheet Metal, Inc. Sleeve coupling
D427668, May 20 1999 Eastern Sheet Metal, Inc. Sleeve coupling
D427673, May 20 1999 Eastern Sheet Metal, Inc. Sleeve coupling
D430482, May 20 1999 Eastern Sheet Metal, Inc. Sleeve coupling
D435090, May 20 1999 EASTERN SHEET METAL INC Gasket
D437034, May 20 1999 Eastern Sheet Metal, Inc. Gasket
D446298, Sep 07 2000 SEMCO DUCT AND ACOUSTICAL PRODUCTS, INC Duct
D475130, Mar 20 2001 EASTERN SHEET METAL INC Bell mouth with a crimped end
D475447, Mar 20 2001 EASTERN SHEET METAL INC Bell mouth with an indented end
D475448, Mar 20 2001 EASTERN SHEET METAL INC Duct with an indented end
D475449, Mar 20 2001 EASTERN SHEET METAL INC Duct tap with an indented end
D475778, Mar 20 2001 EASTERN SHEET METAL INC Offset duct with a crimped end
D475779, Mar 20 2001 EASTERN SHEET METAL INC Offset duct with an indented end
D475780, Mar 20 2001 EASTERN SHEET METAL INC Duct with a crimped end
D476074, Mar 20 2001 EASTERN SHEET METAL INC Duct tap with a crimped end
D478978, Mar 20 2001 Air Distribution Technologies IP, LLC Reducer with a crimped end
D480132, Mar 20 2001 Air Distribution Technologies IP, LLC Reducer with an indented end
D488217, Mar 20 2001 Air Distribution Technologies IP, LLC Bell mouth with a crimped end
D488858, Mar 20 2001 Air Distribution Technologies IP, LLC Duct with an indented end
D488859, Mar 20 2001 Air Distribution Technologies IP, LLC Bell mouth with an indented end
D489806, Mar 20 2001 Air Distribution Technologies IP, LLC Duct with a crimped end
D492024, Mar 20 2001 Air Distribution Technologies IP, LLC Reducer with an indented end
D492025, Mar 20 2001 Air Distribution Technologies IP, LLC Reducer with a crimped end
D501547, Mar 20 2001 Air Distribution Technologies IP, LLC Duct with an indented end
D501548, Mar 20 2001 Air Distribution Technologies IP, LLC Duct tap with an indented end
D504503, Jun 10 2004 SEMCO DUCT AND ACOUSTICAL PRODUCTS, INC Duct link
D521147, Mar 24 2005 Langdon Incorporated Portion of ductwork
D521632, Mar 20 2001 Air Distribution Technologies IP, LLC Duct with a crimped end
D521633, Mar 20 2001 Air Distribution Technologies IP, LLC Duct tap with a crimped end
D523131, Mar 20 2001 Air Distribution Technologies IP, LLC Duct with an indented end
D524436, Mar 20 2001 Air Distribution Technologies IP, LLC Duct with a crimped end
D527091, Mar 20 2001 Air Distribution Technologies IP, LLC Duct with an indented end
D528646, Mar 20 2001 Air Distribution Technologies IP, LLC Duct with a crimped end
D529598, Mar 24 2005 Langdon Incorporated Portion of ductwork
D534253, Mar 24 2005 Langdon Incorporated Gasket
D586704, Apr 06 2006 Pioneer Weston International Limited Axle seal
D974796, Dec 27 2021 SHENZHEN TAYLOR BONWE ELECTRONIC COMMERCE CO , LTD Record protector sleeve
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
1083002,
1832350,
193847,
210367,
2392220,
244720,
2482558,
2535186,
2823703,
3111922,
3290066,
3327945,
3368830,
4007941, Jul 24 1975 ACTA Limited Seal for duct terminator
4050703, Dec 12 1974 Lindab, Lindhs Industri AB Tubular connectors
409631,
4288111, Jan 21 1980 Enterprise Construction Services, Inc. Joint construction for sheet metal ducts
735644,
904199,
910119,
997072,
AT363743,
GB1403744,
GB1429220,
GB2149040,
GB317678,
GB442751,
SE13987,
SE17788,
SE19819,
SE25473,
SE25610,
SE26059,
SE26995,
SE382675,
SE840944,
SE880780,
ASSIGNMENT RECORDS    Assignment records on the USPTO
///
Executed onAssignorAssigneeConveyanceFrameReelDoc
Mar 18 1993SONDEN, CARL-GUSTAFLindab ABASSIGNMENT OF ASSIGNORS INTEREST 0065130606 pdf
Mar 18 1993LENNARTSSON, KENNETHLindab ABASSIGNMENT OF ASSIGNORS INTEREST 0065130606 pdf
Apr 09 1993Lindab AB(assignment on the face of the patent)
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