US3413165A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot rolling process for making grain oriented silicon iron sheet
Assignee: English Electric Co Ltd
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Filing: 1967-06-21
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Granted: 1968-11-26
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Expires: 1987-06-21
Abstract
No abstract record available.
Inventors
- 👤 Buchi Gordon John Philip
- 👤 Griffiths Desmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:15
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/147; H01F1/14766; H01F1/14775; C; C21; C21D; C21D8/00; C21D8/12; C21D8/1216; C21D8/1222; C22; C22C; C22C38/00; C22C38/02; C21D8/1227
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |