Patent US4412685A successfully refreshed from Google Patents.
US4412685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recreational skate
Assignee: Individual
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Filing: 1979-12-26
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Granted: 1983-11-01
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Expires: 1999-12-26
Abstract
Abstract There is disclosed a novel skate structure comprised of a support platform and roller devices wherein the support platform is pivotally mounted to the roller devices by first and second ring bearings having inner and outer races wherein the outer race of the first ring bearing is rigidly secured to the support platform and wherein the outer race of the second ring bearing is rigidly secured to the inner race of the first ring bearing and wherein the roller devices are secured to the inner race of the second ring bearing.
Inventors
- 👤 Pierre E. Szamek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:52
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/04; A63C17/0033; A63C17/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
Skate structure including: a support platform; roller means for providing a rolling contact between said skate structure and a support surface; and first and second ring bearings for pivotally mounting said roller means to said support platform, each of said ring bearings having an outer race and an inner race, said outer race of said first ring bearing being rigidly secured to said support platform, said outer race of said second ring bearing being rigidly secured to said inner race of said first ring bearing and said roller means being secured to said inner race of said second ring bearing.
Claim 2
Dependent Claim
100 words
Skate structure including: a support platform; roller means for providing a rolling contact between said skate structure and a support surface; and first and second ring bearings for pivotally mounting said roller means to said support platform, each of said ring bearings having an outer race and an inner race, said outer race of said first ring bearing being rigidly secured to said support platform, said outer race of said second ring bearing being rigidly secured to said inner race of said first ring bearing and said roller means being secured to said inner race of said second ring bearing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-31 | 1987-05-02 | 1987-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-31 | 1991-05-02 | 1991-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-31 | 1995-05-02 | 1995-11-01 | $7700.00 | Window Closed / Lapsed |