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US2964822A
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US
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Process for the manufacture of ceramic objects
Assignee: Shenango China Inc
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Filing: 1954-12-27
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Granted: 1960-12-20
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Expires: 1974-12-27
Abstract
No abstract record available.
Inventors
- 👤 David E Tomkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:15
CPC Classifications
B; B28; B28B; B28B1/00; B28B1/26; B28B1/265; B28B7/00; B28B7/40; B28B7/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |