03999756 is referenced by 44 patents and cites 14 patents.

The tennis racket has a strung surface which is larger than the strung surface of a conventional racket, particularly in regard to its dimension in a longitudinal direction from the frame tip toward the handle shaft of the racket. The conventional length, weight, and balance which have proven necessary for good playing characteristics for all tennis rackets of the past have been maintained. The racket has unexpectedly achieved increased strength and a combination of advantages in playing characteristics without resort to weights, springs, or other complications previously proposed. The racket has a zone of high coefficient of restitution, much larger than that of conventional rackets, extending in a longitudinal direction from the region of the center of percussion to a point 11/4 inch from the throat of the racket, thereby taking maximum advantage of the location of the center of percussion of the racket. The zone of high coefficient of restitution is also wider with respect to the corresponding zone on conventional rackets.

Title
Tennis racket
Application Number
516550
Publication Number
3999756
Application Date
September 10, 1975
Publication Date
December 28, 1976
Inventor
Howard Head
Baltimore
MD, US
Agent
Seidel Gonda & Goldhammer
Assignee
Prince Manufacturing
NJ, US
IPC
A63B 49/02
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