Patent US2800814A successfully refreshed from Google Patents.
US2800814A
Expired / Lapsed
US
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Slug-positioner for ball-making machines
Assignee: United States Steel Corp
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Filing: 1953-07-31
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Granted: 1957-07-30
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Expires: 1973-07-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas E Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:18
CPC Classifications
B; B21; B21K; B21K27/00; B21K27/02; B21K1/00; B21K1/02; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5116; Y10T29/512
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US797934A
Cited
US1569895A
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US1857997A
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US2067568A
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US1897359A
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US1989398A
Cited
US2532928A
Cited
US2639632A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |