US2904342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extensible ice skate
Assignee: Individual
•
Filing: 1957-03-07
•
Granted: 1959-09-15
•
Expires: 1977-03-07
Abstract
No abstract record available.
Inventors
- 👤 Charles E Jones
- 👤 William G Crowle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:51
CPC Classifications
A; A63; A63C; A63C1/00; A63C1/30; A63C1/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA455119A
Cited
US672376A
Cited
US1597213A
Cited
US1989344A
Cited
US1996925A
Cited
US2190316A
Cited
US2706119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |