US2573353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolling mill
Assignee: Bethlehem Steel Corp
•
Filing: 1945-10-04
•
Granted: 1951-10-30
•
Expires: 1965-10-04
Abstract
No abstract record available.
Inventors
- 👤 Henry W Nieman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:27
CPC Classifications
B; B21; B21B; B21B31/00; B21B31/02; B21B1/00; B21B1/08; B21B1/12; B21B1/16; B21B1/18; B21B13/00; B21B13/14; B21B2031/021; Y; Y10; Y10S; Y10S425/00; Y10S425/235
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US165819A
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US1634258A
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US2058717A
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US2107541A
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US2124518A
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US2187250A
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US2267380A
Cited
US2275113A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-29 | 1955-04-30 | 1955-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-29 | 1959-04-30 | 1959-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-29 | 1963-04-30 | 1963-10-30 | $7700.00 | Window Closed / Lapsed |