Patent US2587271A successfully refreshed from Google Patents.
US2587271A
Expired / Lapsed
US
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Dinnerware finishing machine
Assignee: EDWIN M KNOWLES CHINA Co
•
Filing: 1948-12-01
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Granted: 1952-02-26
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Expires: 1968-12-01
Abstract
No abstract record available.
Inventors
- 👤 Howard G Allen
- 👤 Robert W Watkin
- 👤 Jr Stanley Kufel
- 👤 Edward I Fisher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:58
CPC Classifications
B; B28; B28B; B28B11/00; B28B11/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1365583A
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US710742A
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US827388A
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US1675183A
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US1762387A
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US1881162A
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US1971206A
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US2148871A
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US2409953A
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US2455744A
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US2489811A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |