US2788237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bloom-tumbling tool
Assignee: United States Steel Corp
•
Filing: 1954-10-08
•
Granted: 1957-04-09
•
Expires: 1974-10-08
Abstract
No abstract record available.
Inventors
- 👤 Misiura Bronislaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:59
CPC Classifications
B; B21; B21B; B21B39/00; B21B39/20; B21B39/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US102087A
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US466912A
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US530361A
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US1006348A
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US1563255A
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US2132553A
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US2210904A
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US2655064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-08 | 1960-10-08 | 1961-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-08 | 1964-10-08 | 1965-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-08 | 1968-10-08 | 1969-04-09 | $7700.00 | Window Closed / Lapsed |