US3379031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial ice rink employing modular units
Assignee: Individual
•
Filing: 1966-01-24
•
Granted: 1968-04-23
•
Expires: 1986-01-24
Abstract
No abstract record available.
Inventors
- 👤 Jr John C Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:41
CPC Classifications
E; E01; E01C; E01C13/00; E01C13/10; E01C13/102; E01C13/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
AN ARTIFICIAL ICE RINK COMPRISING AT LEAST TWO, INTERCONNECTED, FIBRE-GLASS REINFORCED POLYESTER RESIN, COOLING MODULES HAVING INTEGRAL SIDES FOR ICE RETENTION THEREON AND HAVING INTERNAL VEINS FOR THE CIRCULATION OF A COOLING LIQUID WHICH MAINTAINS THE SURFACE OF SAID MODULES AT A TEMPERATURE BELOW THE FREEZING POINT OF WATER TO ALLOW FOR FORMATION OF ICE THEREON.
Claim 2
Dependent Claim
56 words
AN ARTIFICIAL ICE RINK COMPRISING AT LEAST TWO, INTERCONNECTED, FIBRE-GLASS REINFORCED POLYESTER RESIN, COOLING MODULES HAVING INTEGRAL SIDES FOR ICE RETENTION THEREON AND HAVING INTERNAL VEINS FOR THE CIRCULATION OF A COOLING LIQUID WHICH MAINTAINS THE SURFACE OF SAID MODULES AT A TEMPERATURE BELOW THE FREEZING POINT OF WATER TO ALLOW FOR FORMATION OF ICE THEREON.
References Cited (Backward Citations)
DE109904C
Cited
US632035A
Cited
US2270745A
Cited
US2469021A
Cited
US2615308A
Cited
US2769315A
Cited
US2874549A
Cited
US3012596A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |