Patent US4293129A successfully refreshed from Google Patents.
US4293129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Game rackets and paddles with nonparallel playing surfaces
Assignee: Individual
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Filing: 1979-05-21
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Granted: 1981-10-06
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Expires: 1999-05-21
Abstract
Abstract This relates to game rackets, such as tennis rackets, and to paddles, such as table tennis paddles, with two discrete playing surfaces wherein the planes of the playing surfaces intersect each other generally at the crown portion of the racket head or paddle blade. This relationship of the playing surfaces permits a greater arc of stroke by a player thereby permitting a struck ball to be propelled with a greater velocity. It also permits a player to strike a ball in a more forward position thereby making it easier for the player to "keep his eye on the ball," with a resulting better ball control.
Inventors
- 👤 Leo N. Planakis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:34
CPC Classifications
A; A63; A63B; A63B49/00; A63B49/02; A63B51/00; A63B51/06; A63B59/00; A63B59/40; A63B60/00; A63B60/06; A63B60/34; A63B2102/00; A63B2102/16
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
101 words
A game racket comprising a head and a handle, said head having two discrete, nonparallel strung surfaces, each of said strung surfaces being a mesh of tensioned stringing, said handle comprising a hand grip portion and a shank portion, said shank portion joined to the shoulder portion of said head, and the line of intersection of the planes of said strung surfaces being generally normal to and intersecting the longitudinal axis of said racket generally at the crown portion of said head, said head being formed of two generally oval frames, and said frames being fixedly joined at said crown portion.
Claim 2
Dependent Claim
101 words
A game racket comprising a head and a handle, said head having two discrete, nonparallel strung surfaces, each of said strung surfaces being a mesh of tensioned stringing, said handle comprising a hand grip portion and a shank portion, said shank portion joined to the shoulder portion of said head, and the line of intersection of the planes of said strung surfaces being generally normal to and intersecting the longitudinal axis of said racket generally at the crown portion of said head, said head being formed of two generally oval frames, and said frames being fixedly joined at said crown portion.
Claim 3
Dependent Claim
30 words
The racket of claim 1 wherein the angle of intersection of said planes is bisected by said longitudinal axis, and said angle is generally between two degrees and fifty degrees.
Claim 4
Dependent Claim
30 words
The racket of claim 1 wherein the angle of intersection of said planes is bisected by said longitudinal axis, and said angle is generally between four degrees and thirty-two degrees.
Claim 5
Dependent Claim
23 words
The racket of claim 1 wherein said shank portion is bifurcated and joined to said frames at said shoulder portion of said head.
Claim 6
Dependent Claim
40 words
A game racket according to claim 1 wherein each of said oval frames has spaced portions extending through said shoulder portion and said shank portion into said hand grip portion, and said hand grip portion includes four parallel frame components.
Claim 7
Dependent Claim
74 words
A paddle comprising a longitudinally extending handle and a blade unit, said blade unit having two plane, nonparallel playing surfaces defined by two blade members, said handle beng joined to a shoulder portion of said blade unit, and the line of intersection of the planes of said surfaces being generally normal to and intersecting a longitudinal axis of said paddle extending through said handle, and said blade members having like end portions joined together.
Claim 8
Dependent Claim
74 words
A paddle comprising a longitudinally extending handle and a blade unit, said blade unit having two plane, nonparallel playing surfaces defined by two blade members, said handle beng joined to a shoulder portion of said blade unit, and the line of intersection of the planes of said surfaces being generally normal to and intersecting a longitudinal axis of said paddle extending through said handle, and said blade members having like end portions joined together.
Claim 9
Dependent Claim
30 words
The paddle of claim 6 wherein the angle of intersection of said planes is bisected by said longitudinal axis, and said angle is generally between two degrees and fifty degrees.
Claim 10
Dependent Claim
30 words
The paddle of claim 6 wherein the angle of intersection of said planes is bisected by said longitudinal axis, and said angle is generally between four degrees and thirty-two degrees.
Claim 11
Dependent Claim
20 words
The paddle of claim 6 wherein said blade members are joined together at the crown portion of said blade unit.
Claim 12
Dependent Claim
34 words
The paddle of claim 6 wherein said blade members are joined together at said shoulder portion of said blade unit with portions of said blade members extending into and forming part of said handle.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-10-05 | 1985-04-06 | 1985-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-05 | 1989-04-06 | 1989-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-05 | 1993-04-06 | 1993-10-06 | $7700.00 | Window Closed / Lapsed |