Patent US2649337A successfully refreshed from Google Patents.
US2649337A
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Roller structure
Assignee: CHICAGO ROLLER SKATE Co
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Filing: 1949-06-08
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Granted: 1953-08-18
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Expires: 1969-06-08
Abstract
No abstract record available.
Inventors
- 👤 Ware Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:48
CPC Classifications
B; B60; B60B; B60B33/00; B60B33/0028; A; A63; A63C; A63C17/00; A63C17/22; F; F16; F16C; F16C35/00; F16C35/04; F16C35/06; F16C35/067; B60B2900/00; B60B2900/20; B60B2900/211; B60B2900/50; B60B2900/511; B60B2900/5112; B60B2900/70; B60B2900/721; F16C13/00; F16C13/006; F16C19/00; F16C19/54; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/929; Y10S411/931
Claims Analysis
Total Claims: 0
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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) | 1956-08-17 | 1957-02-16 | 1957-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-17 | 1961-02-16 | 1961-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-17 | 1965-02-16 | 1965-08-18 | $7700.00 | Window Closed / Lapsed |