Patent US2575656A successfully refreshed from Google Patents.
US2575656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for finishing workpieces of irregular shapes
Assignee: Individual
•
Filing: 1948-11-26
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Granted: 1951-11-20
•
Expires: 1968-11-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry D Coe
- 👤 Joseph B Dym
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:57
CPC Classifications
B; B24; B24B; B24B21/00; B24B21/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US552066A
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US645717A
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US1000296A
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US1160099A
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US1434334A
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US1288908A
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US2296990A
Cited
US2334960A
Cited
US2453972A
Cited
US2376847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |