US2931012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single wheel skate
Assignee: Individual
•
Filing: 1957-12-16
•
Granted: 1960-03-29
•
Expires: 1977-12-16
Abstract
No abstract record available.
Inventors
- 👤 John J Kosach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:22
CPC Classifications
A; A63; A63C; A63C17/00; A63C17/04; A63C17/06; A63C17/08; Y; Y10; Y10S; Y10S362/00; Y10S362/802
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US572403A
Cited
US1165082A
Cited
US2140224A
Cited
US2299762A
Cited
US2502566A
Cited
US2675243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-29 | 1963-09-28 | 1964-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-29 | 1967-09-28 | 1968-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-29 | 1971-09-28 | 1972-03-29 | $7700.00 | Window Closed / Lapsed |