Collapsible indoor sports mats

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4350721
SERIAL NO

06322222

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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In a collapsible indoor sports mats in which a plurality of unit mats can be connected to and separated from one another by means of fasteners, the improvement wherein tapes of the fasteners having engaging teeth aligned thereon are fixed on the backs of the connecting edges of the unit mats, non-toothed portions for guiding a slider are formed by removing the engaging teeth, at the ends of extending parts extending from the unit mats, and location reference line marks are put at corresponding positions on the surface of the extending parts opposing one another, so that court lines on the unit mats to be connected are automatically matched with one another.

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First Claim

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Family

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Patent Owner(s)

Patent OwnerAddressTotal Patents
Nagase Rubber Co., Ltd.TOKYO0

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nagase, Jiro Tokyo, JP 1 21

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Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
Other [Check patent profile for assignment information] (7)
* 4887811 Baseball slide practice device 13 1989
* 5458549 Cushioned floor pad for exercising abdominal muscles 11 1994
* 5562573 Landing mat for gymnasts 4 1995
* 2007/0051,120 Printed liner for curling rinks 1 2006
* 2008/0108,482 Exercise kit 3 2006
* 9010349 Bouldering mat and tent combination 1 2014
9278243 Mat connecting system 0 2014
 
Minnesota Mining and Manufacturing Company (3)
* 5691026 Fastener member with a dual purpose cover sheet 28 1994
* 5691027 Fastener with a dual purpose cover sheet 34 1995
* 5902427 Fastener arrangement with dual purpose cover sheet 19 1997
 
Dollamur LP (4)
8307600 Mat connecting system 5 2009
8733056 Mat connecting system 0 2012
8596011 Mat connecting system 0 2012
8800233 Mat connecting system 0 2013
 
TAC-FAST GEORGIA L.L.C. (2)
4822658 Carpet backing and installation system 87 1987
* 5723195 Carpet and underpad attachment system 19 1993
 
Tac-Fast Systems SA (1)
* 4974384 Structural assembly system 43 1988
 
KEYBANK NATIONAL ASSOCIATION (1)
* 4819932 Aerobic exercise floor system 287 1986
 
FAURECIA INNENRAUM SYSTEME GMBH (1)
* 2015/0075,733 ROLLER SHUTTER AND STORAGE COMPARTMENT COMPRISING SAID ROLLER SHUTTER 1 2014
 
WILLOW GROVE BANK (1)
* 5066001 Portable, foldable, adjustable, aerobic exercise bench/step/mat 39 1990
 
EVERLAST CLIMBING INDUSTRIES, INC. (1)
* 7819778 Safety mat securement assembly 9 2007
 
LISA DRAEXLMAIER GMBH (1)
* 2007/0125,500 Flat-web roller blind cover 3 2006
 
YKK CORPORATION (1)
* 6427294 Waterproof slide fastener and manufacturing method thereof 12 2000
 
Nagase Kenko Corporation (1)
* 5093169 Indoor sport floor mat comprising a plurality of fastenable/unfastenable mat units 1 1990
 
LIFEMATES, INC. (1)
* 5060937 Exercise and rehabilitative apparatus and method of exercising 17 1990
 
M.P.L. LIMITED (1)
* 2013/0061,393 FALL MAT WITH HINGED INTERLOCKING BODIES 3 2011
* Cited By Examiner