Patent US3457097A successfully refreshed from Google Patents.
US3457097A
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Method of coating ferrous metal with molten aluminum
Assignee: Yawata Seitetsu KK
•
Filing: 1965-02-03
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Granted: 1969-07-22
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Expires: 1985-02-03
Abstract
No abstract record available.
Inventors
- 👤 Shigeru Yonezaki
- 👤 Kenichi Asakawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:05
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/04; C23C2/12; C23C14/00; C23C14/22; C23C14/56; C23C14/562; C23C2/003; C23C2/0034; C23C2/00342; C23C2/00344; C23C2/0038; C23C2/004; C23C2/02; C23C2/022; C23C2/0222; C23C2/0224; C23C2/024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2664873A
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US2800707A
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US2686355A
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US3000756A
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US3047420A
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US3051587A
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US3018190A
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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) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |