Patent US3011493A successfully refreshed from Google Patents.
US3011493A
Expired / Lapsed
US
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Snow melting apparatus
Assignee: Individual
•
Filing: 1958-01-17
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Granted: 1961-12-05
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Expires: 1978-01-17
Abstract
No abstract record available.
Inventors
- 👤 Zieba John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:14
CPC Classifications
E; E01; E01H; E01H5/00; E01H5/10; E01H5/104
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE16813E
Cited
US717756A
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US933837A
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US1349853A
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US1728525A
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US2169601A
Cited
US2133319A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |