US3426414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sleeve roll
Assignee: Kanto Special Steel Works Ltd
•
Filing: 1966-06-07
•
Granted: 1969-02-11
•
Expires: 1986-06-07
Abstract
No abstract record available.
Inventors
- 👤 Takeshi Iseki
- 👤 Kosho Koga
- 👤 Seiji Ito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:41
CPC Classifications
B; B21; B21B; B21B27/00; B21B27/02; B21B27/03; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49544; Y10T29/49547; Y10T29/49549; Y10T29/49552
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US281597A
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US476552A
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US1430418A
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US2732232A
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US1514505A
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US2018247A
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US2215424A
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US2367088A
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US2452266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |