US2628459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinder for roller-skate wheels
Assignee: CHICAGO ROLLER SKATE Co
•
Filing: 1950-02-04
•
Granted: 1953-02-17
•
Expires: 1970-02-04
Abstract
No abstract record available.
Inventors
- 👤 Gordon K Ware
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:20
CPC Classifications
B; B24; B24B; B24B5/00; B24B5/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US548298A
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US554797A
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US615089A
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US656685A
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US821143A
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US1608374A
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US2252287A
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US2259883A
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US2419179A
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US2450135A
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US2490480A
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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) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |