Patent US2517548A successfully refreshed from Google Patents.
US2517548A
Expired / Lapsed
US
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Sanding device
Assignee: Individual
•
Filing: 1947-07-26
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Granted: 1950-08-08
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Expires: 1967-07-26
Abstract
No abstract record available.
Inventors
- 👤 Franklin A Dobson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:01
CPC Classifications
B; B24; B24B; B24B23/00; B24B23/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1160452A
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US1868507A
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US2113694A
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US2193418A
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US2205492A
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US2358518A
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US2367668A
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US2395537A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |