US2672661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary-table casting apparatus with water-cooled molds
Assignee: United States Steel Corp
•
Filing: 1951-07-09
•
Granted: 1954-03-23
•
Expires: 1971-07-09
Abstract
No abstract record available.
Inventors
- 👤 Stanley N Lutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:44
CPC Classifications
B; B22; B22D; B22D5/00; B22D5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US174833A
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US597367A
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US1801574A
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US1966596A
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US2030482A
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US2326164A
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US2412040A
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US2473160A
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US2521753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |