Patent US2581249A successfully refreshed from Google Patents.
US2581249A
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US
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Method of making ceramic dipping forms or the like
Assignee: COLONIAL INSULATOR Co
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Filing: 1948-06-18
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Granted: 1952-01-01
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Expires: 1968-06-18
Abstract
No abstract record available.
Inventors
- 👤 Rudolph V Ganz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:29
CPC Classifications
B; B28; B28B; B28B11/00; B28B11/04; B28B11/041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US207543A
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US264505A
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US2209624A
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US2344960A
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US2174198A
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US2261583A
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US2384741A
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US2512929A
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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) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |