Patent US2560221A successfully refreshed from Google Patents.
US2560221A
Expired / Lapsed
US
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Snow and ice melting device for vehicles
Assignee: JAMES C WALBRIGHT
•
Filing: 1948-08-19
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Granted: 1951-07-10
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Expires: 1968-08-19
Abstract
No abstract record available.
Inventors
- 👤 Jack L Hamblin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:36
CPC Classifications
B; B60; B60B; B60B39/00; B60B39/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US77602A
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US1398454A
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US851011A
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US1215620A
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US1502104A
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US1517949A
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US1629160A
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US1921901A
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US1987603A
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US2369154A
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US2487353A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |