Collapsible indoor sports mats
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 21, 1982
Grant Date -
N/A
app pub date -
Nov 17, 1981
filing date -
Nov 17, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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.
First Claim
Family
International Classification(s)
Cited Art Landscape
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