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US4392659A Expired / Lapsed US ⏱️ 0.0 years remaining

Two-wheeled roller skate

Assignee: HANSHIN SOGYO CO Ltd
•
Filing: 1981-02-17
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Granted: 1983-07-12
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Expires: 2001-02-17
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Abstract

Abstract A two-wheeled roller skate comprising (a) a base plate adapted to be mounted on a shoe base; and (b) a pair of suspension arms each having one end resiliently connected to said base plate, a bent portion resiliently and more or less rotatably supported by said base plate and a free end rotatably supporting one roller.

Inventors

  • 👤 Koichi Yoshimoto

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 14:39
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/04; A63C17/06; A63C17/061; A63C17/064

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 205 words
A two-wheeled roller skate comprising: (a) a base plate having first and second vertical openings extending therethrough; (b) a pair of suspension arms extending longitudinally of said base plate and generally parallel thereto; (c) each of said suspension arms having a first end swingably connected to said base plate, a downwardly bent intermediate portion, and a second end, and having a skate roller connected to said second end: (d) first bolt means extending through said first and second openings for swingably supporting said suspension arms; (e) second bolt means extending horizontally through said bent portion of each suspension arm for pivotably supporting the suspension arms on said base plate; (f) each of said first and second vertical openings in said base plate being larger at the bottom end thereof than at the top end thereof to accommodate pivoting movement of said suspension arms about said second bolt means; and (g) a toe base portion at one end of said base plate and a heel base portion at the other end of said base plate, said toe base portion being connected to said base plate by said second bolt means, and said heel base portion being connected to said base plate by said second bolt means.
Claim 2
Dependent Claim 205 words
A two-wheeled roller skate comprising: (a) a base plate having first and second vertical openings extending therethrough; (b) a pair of suspension arms extending longitudinally of said base plate and generally parallel thereto; (c) each of said suspension arms having a first end swingably connected to said base plate, a downwardly bent intermediate portion, and a second end, and having a skate roller connected to said second end: (d) first bolt means extending through said first and second openings for swingably supporting said suspension arms; (e) second bolt means extending horizontally through said bent portion of each suspension arm for pivotably supporting the suspension arms on said base plate; (f) each of said first and second vertical openings in said base plate being larger at the bottom end thereof than at the top end thereof to accommodate pivoting movement of said suspension arms about said second bolt means; and (g) a toe base portion at one end of said base plate and a heel base portion at the other end of said base plate, said toe base portion being connected to said base plate by said second bolt means, and said heel base portion being connected to said base plate by said second bolt means.

References Cited (Backward Citations)

DE654100C Cited
FR410240A Cited
US1771855A Cited
US2025858A Cited
US2137330A Cited
US2259346A Cited
US2719725A Cited
US3339936A Cited
US3877710A Cited
US4212479A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-07-11 1987-01-10 1987-07-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-07-11 1991-01-10 1991-07-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-07-11 1995-01-10 1995-07-12 $7700.00 Window Closed / Lapsed

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