US3015938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skating rink and method for providing the same
Assignee: Individual
•
Filing: 1958-08-29
•
Granted: 1962-01-09
•
Expires: 1978-08-29
Abstract
No abstract record available.
Inventors
- 👤 Franciscus A Vereyken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:42
CPC Classifications
F; F25; F25C; F25C3/00; F25C3/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US458726A
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US1537646A
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US1768263A
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US1821509A
Cited
GB382738A
Cited
US1918437A
Cited
US1968144A
Cited
US2364279A
Cited
US2498645A
Cited
FR1085184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-08 | 1965-07-10 | 1966-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-08 | 1969-07-10 | 1970-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-08 | 1973-07-10 | 1974-01-09 | $7700.00 | Window Closed / Lapsed |