Racquet, in particular a tennis racquet
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 14, 1992
Issued Date -
N/A
app pub date -
Jul 26, 1991
filing date -
Jul 31, 1990
priority date (Note) -
In Force
status (Latency Note)
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Abstract
In a racquet, in particular, a tennis racquet, which incorporates a frame, an open or closed heart piece, and a shaft (2) that is joined to the heart piece, with the frame, heart piece and shaft being formed in one piece or connected releasably to each other, the grip (1) that is formed as a one-piece sleeve can be slid onto the shaft. The inside profile of the cross section of the grip (1) and the outside profile of the cross section of the shaft (2) incorporate longitudinal shape-locking and interacting supporting surfaces. The spacing between the supporting surfaces on the shaft (2) and the supporting surfaces of the grip (1) tapers in a wedge shape towards the unattached end (11) of the shaft (2). A removable distance piece (3) that prevents the grip (1) being slid axially into the mated position is releasably connected to the end (11) of the shaft. With the distance piece (3) installed on the shaft, the racquet can be tested with various grips (1). After removal of the distance piece (3) the grip is slid completely onto the shaft (2) and is then joined to the shaft so that, for all practical purposes, it cannot be released from the shaft.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
| Patent Owner | Address | |
|---|---|---|
| HEAD SPORT AKTIENGESELLSCHAFT | WUHRKOPFWEG 1 A-6921 KENNELBACH |
International Classification(s)
Inventor(s)
| Inventor Name | Address | # of filed Patents | Total Citations |
|---|---|---|---|
| Marte, Robert | Gotzis, AT | 2 | 9 |
| Umlauft, Helmut | Hard, AT | 11 | 77 |
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| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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