US3212942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing double-oriented magnetic steel sheets
Assignee: Yawata Iron and Steel Co Ltd
•
Filing: 1963-03-08
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Granted: 1965-10-19
•
Expires: 1983-03-08
Abstract
No abstract record available.
Inventors
- 👤 Takahashi Kenji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:10
CPC Classifications
C; C21; C21D; C21D8/00; C21D8/12; C21D8/1216; C21D8/1233; C21D8/1244; C21D8/1266; C21D8/1272
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2076383A
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US3058857A
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US3130092A
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US3090711A
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US3089795A
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US3105782A
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US3078198A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |