US2582470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable sanding machine
Assignee: RIDDLE
•
Filing: 1949-11-02
•
Granted: 1952-01-15
•
Expires: 1969-11-02
Abstract
No abstract record available.
Inventors
- 👤 Allan B Walker
- 👤 Harry J Riddle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:18
CPC Classifications
B; B24; B24B; B24B23/00; B24B23/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1421303A
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US1553456A
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CH127589A
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FR674838A
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US1868507A
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US2242545A
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US2395537A
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US2492231A
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US2488098A
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US2493226A
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US2477807A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |