US3106496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coating and annealing grain oriented silicon steels
Assignee: General Electric Co
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Filing: 1961-04-28
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Granted: 1963-10-08
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Expires: 1981-04-28
Abstract
No abstract record available.
Inventors
- 👤 Anolick Eugene Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:55
CPC Classifications
C; C21; C21D; C21D8/00; C21D8/12; C21D8/1277; C21D8/1283; C21D8/1244; C21D8/125; C23; C23C; C23C24/00; C21D1/00; C21D1/04; C21D8/1272; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
IN THE PROCESS OF COATING GRAIN ORIENTED ELECTRICAL STEELS OF UP TO ABOUT 6% SILICON CONTENT WITH AN ADHERENT CALCIUM ORTHOSILICATE COATING HAVING GOOD ELECTRICAL INSULATING AND HIGH TEMPERATURE SEPARATING PROPERTIES, IN WHICH PROCESS STEEL COATED WITH CALCIUM ORTHOSILICATE IS HEATED TO A TEMPERATURE ABOVE 700*C. FOR PROVIDING PREDETERMINED GRAIN ORIENTATION IN THE STEEL AND THEN COOLED TO AMBIENT TEMPERATURES, THE IMPROVEMENT WHERE-
Claim 2
Dependent Claim
63 words
IN THE PROCESS OF COATING GRAIN ORIENTED ELECTRICAL STEELS OF UP TO ABOUT 6% SILICON CONTENT WITH AN ADHERENT CALCIUM ORTHOSILICATE COATING HAVING GOOD ELECTRICAL INSULATING AND HIGH TEMPERATURE SEPARATING PROPERTIES, IN WHICH PROCESS STEEL COATED WITH CALCIUM ORTHOSILICATE IS HEATED TO A TEMPERATURE ABOVE 700*C. FOR PROVIDING PREDETERMINED GRAIN ORIENTATION IN THE STEEL AND THEN COOLED TO AMBIENT TEMPERATURES, THE IMPROVEMENT WHERE-
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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) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |