US3119921A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ice skates having heated blades
Assignee: Individual
•
Filing: 1962-11-02
•
Granted: 1964-01-28
•
Expires: 1982-11-02
Abstract
No abstract record available.
Inventors
- 👤 Czaja Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:39
CPC Classifications
H; H05; H05B; H05B3/00; A; A63; A63C; A63C2203/00; A63C2203/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
AN ICE SKATE COMPRISING A HEAT CONDUCTIVE BLADE HAVING AN ICE-CONTACTING SURFACE ON ITS UNDERSIDE, AND HEATING MEANS MOUNTED ON THE BLADE AND IN HEAT TRANSFER CONTACT WITH THE OPPOSITE SIDES OF THE BLADE, SAID BLADE COMPRISING COPPER PLATINGS ON THE SIDE SURFACES OF THE BLADE, PLATINGS OF LESS HEAT CONDUCTIVITY THAN THE COPPER PLATINGS AND OVERLYING THE COPPER PLATINGS, AND MEANS CARRIED BY THE SKATE AND OPERATIVELY CONNECTED TO THE HEATING MEANS FOR ENERGIZING THE HEATING MEANS.
Claim 2
Dependent Claim
78 words
AN ICE SKATE COMPRISING A HEAT CONDUCTIVE BLADE HAVING AN ICE-CONTACTING SURFACE ON ITS UNDERSIDE, AND HEATING MEANS MOUNTED ON THE BLADE AND IN HEAT TRANSFER CONTACT WITH THE OPPOSITE SIDES OF THE BLADE, SAID BLADE COMPRISING COPPER PLATINGS ON THE SIDE SURFACES OF THE BLADE, PLATINGS OF LESS HEAT CONDUCTIVITY THAN THE COPPER PLATINGS AND OVERLYING THE COPPER PLATINGS, AND MEANS CARRIED BY THE SKATE AND OPERATIVELY CONNECTED TO THE HEATING MEANS FOR ENERGIZING THE HEATING MEANS.
References Cited (Backward Citations)
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Cited
US2034880A
Cited
GB526592A
Cited
US2699484A
Cited
US3026118A
Cited
US3079486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |