US3594240A
Expired / Lapsed
US
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Process of making glass coated electrical steel cores
Assignee: Westinghouse Electric Corp
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Filing: 1970-06-15
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Granted: 1971-07-20
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Expires: 1990-06-15
Abstract
Abstract AN ORIENTED SILICON STEEL PRODUCT AND METHOD FOR PRODUCING THE SAME IS DESCRIBED IN WHICH IMPORVED MANGETOSTRICTION AND STRAIN SENSITIVITY ARE OBTAINED BY MEANS OF BONDING A THIN GLASS LAYER TO THE SURFACE OF THE STEEL.
Inventors
- 👤 Karl Foster
- 👤 Joseph Seidel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:43
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/02; H01F41/0206; H01F41/0213; C; C03; C03C; C03C3/00; C03C3/12; C03C3/16; C03C3/21; C03C4/00; C23; C23D; C23D11/00; C23D5/00; C23D5/02; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/147; H01F1/14766; H01F1/14775; H01F1/14783; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |