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US4289325A Expired / Lapsed US ⏱️ 0.0 years remaining

Skateboard

Assignee: Individual
•
Filing: 1979-12-18
•
Granted: 1981-09-15
•
Expires: 1999-12-18
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Abstract

Abstract This skateboard has a central section which is supported by longitudinally spaced wheel units under its end portions. A forward extension unit connects with the forward end portion of the central section and is preferably of arcuate shape, in longitudinal section, and extends forwardly and upwardly. The length of the forward extension unit is in the order of about one-half the length of the central section. Connecting means, as holes, are provided in the forward extension unit so the lower end portion of an operator support rope may be connected with a selected one thereof and thus the angular relation of the support rope and the operator's arm engaging the rope to the plane of the forward extension and the central section may be maintained in the range of 60°, with a variation of plus or minus 7°, and this for all average people regardless of their individual heights. By maintaining the said angular relation of the support rope, a rider may lean backwards and strain against the support rope and then shift a part of his or her body weight in controlling the skateboard and maintain the desired angular relationship between the support rope to the skateboard. An operator of the skateboard enhances his or her body control of the skateboard by riding with both feet on the central section and with a portion of his or her body weight straining the operator support rope.

Inventors

  • 👤 Robert J. Whitacre

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-27 23:13
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/26; A63C17/265; A63C17/01

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 158 words
A skateboard comprising a central platform section; a skate wheel unit carried by and disposed under each end portion of said central section; a forward extension carried by and extending forwardly of said central section; connecting means for adjustably connecting with the forward extension and at selected portions of the length of such extension, said adjusting means comprising a plurality of longitudinally spaced openings in the forward extension; and a support rope connected with said connecting means, said support rope being connectable with a selected opening of said spaced openings in said forward extension to provide an angular relation of about 60° of the support rope to the central section, when the rope is gripped by a rider standing on the central section and with the rider's rope-engaging arm alined with the support rope, thereby providing enhancement of rider control of the skateboard and maintaining a certain angular relation of rope to rider with riders of varying heights.
Claim 2
Dependent Claim 158 words
A skateboard comprising a central platform section; a skate wheel unit carried by and disposed under each end portion of said central section; a forward extension carried by and extending forwardly of said central section; connecting means for adjustably connecting with the forward extension and at selected portions of the length of such extension, said adjusting means comprising a plurality of longitudinally spaced openings in the forward extension; and a support rope connected with said connecting means, said support rope being connectable with a selected opening of said spaced openings in said forward extension to provide an angular relation of about 60° of the support rope to the central section, when the rope is gripped by a rider standing on the central section and with the rider's rope-engaging arm alined with the support rope, thereby providing enhancement of rider control of the skateboard and maintaining a certain angular relation of rope to rider with riders of varying heights.
Claim 3
Dependent Claim 14 words
The combination of claim 1, wherein the forward extension extends arcuately forwardly and upwardly.
Claim 4
Dependent Claim 24 words
The combination of claim 1, wherein the length of the forward extension is in the order of one-half the length of the central section.

References Cited (Backward Citations)

US3235282A Cited
USD242735S Cited
US4040639A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-09-14 1985-03-16 1985-09-15 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-09-14 1989-03-16 1989-09-15 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-09-14 1993-03-16 1993-09-15 $7700.00 Window Closed / Lapsed

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