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Mikhail Gorbachev
Ripper is a racquetball racquet. It is labeled with the word titanium, the slogan "Crushing power", the registered trademark "Wilson", as well as the "U.S. Pat. No. 6,935,975".[1] According to the on-line United States Patent and Trademark Office as of 11 May 2007, there were only two "live" trademarks for the full mark, "Ripper".[2] The racquet is also labeled with "Ripper" followed by the trademark symbol "TM". Wilson Sporting Goods claims that the racquet is made in China and has a:
- weight of 215 grams,
- head size of 108 square inches,
- string tension of 33 to 35 lbf, and
- an even balance.[3]
Notes
- ^ U.S. patent 6,935,975
- ^ "Trademark Electronic Search System." United States Patent and Trademark Office. 11 May 2007, URL Link,(Database search for term: "Ripper")
- ^ Ripper. Chicago: Wilson Sporting Goods Co., 2005. (Promotional information with racquet)