Patent US2907235A successfully refreshed from Google Patents.
US2907235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cold rolling mills
Assignee: Individual
•
Filing: 1956-04-24
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Granted: 1959-10-06
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Expires: 1976-04-24
Abstract
No abstract record available.
Inventors
- 👤 Murakami Yoshihiko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:07
CPC Classifications
B; B21; B21B; B21B13/00; B21B13/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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Cited
US1688335A
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US1824211A
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US1905129A
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US1964893A
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US1970509A
Cited
US1953190A
Cited
US2181173A
Cited
US2187250A
Cited
US2271459A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |