Patent US2722790A successfully refreshed from Google Patents.
US2722790A
Expired / Lapsed
US
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Portable sanding machine
Assignee: Individual
•
Filing: 1954-04-16
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Granted: 1955-11-08
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Expires: 1974-04-16
Abstract
No abstract record available.
Inventors
- 👤 Carl M Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:06
CPC Classifications
A; A47; A47L; A47L11/00; A47L11/40; A47L11/4036; A47L11/02; A47L11/10; A47L11/12; A47L11/4063; A47L11/4069; B; B24; B24B; B24B23/00; B24B23/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1761059A
Cited
US2156798A
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US2417680A
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US2395537A
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US2492231A
Cited
US2488098A
Cited
US2582470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-07 | 1959-05-09 | 1959-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-07 | 1963-05-09 | 1963-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-07 | 1967-05-09 | 1967-11-08 | $7700.00 | Window Closed / Lapsed |