Patent US864471A successfully refreshed from Google Patents.
US864471A
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Sand-blast apparatus.
Assignee: INTERNATIONAL SAND-BLAST Co
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Filing: 1906-02-19
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Granted: 1907-08-27
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Expires: 1926-02-19
Abstract
No abstract record available.
Inventors
- 👤 William H Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:12
CPC Classifications
B; B24; B24C; B24C7/00; B24C7/0046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1910-08-26 | 1911-02-25 | 1911-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1914-08-26 | 1915-02-25 | 1915-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1918-08-26 | 1919-02-25 | 1919-08-27 | $7700.00 | Window Closed / Lapsed |