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US2595751A
Expired / Lapsed
US
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Roller skate
Assignee: Individual
•
Filing: 1949-05-06
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Granted: 1952-05-06
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Expires: 1969-05-06
Abstract
No abstract record available.
Inventors
- 👤 Balstad Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:38
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1440A
Cited
US882999A
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US1228111A
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US2356736A
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US2490849A
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US2466070A
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US2485147A
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US2508980A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |