US2789450A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling mill
Assignee: Individual
•
Filing: 1953-02-05
•
Granted: 1957-04-23
•
Expires: 1973-02-05
Abstract
No abstract record available.
Inventors
- 👤 Properzi Ilario
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:21
CPC Classifications
B; B21; B21B; B21B13/00; B21B13/08; B21B13/10; B21B13/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US287008A
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US332572A
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US351841A
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US388389A
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US433286A
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US439878A
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US455621A
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US518608A
Cited
US616092A
Cited
US1930698A
Cited
US2053694A
Cited
US2003551A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |