US3054732A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated metallic sheet material and method of making the same
Assignee: General Electric Co
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Filing: 1959-03-05
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Granted: 1962-09-18
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Expires: 1979-03-05
Abstract
No abstract record available.
Inventors
- 👤 James M Mcquade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:45
CPC Classifications
C; C25; C25D; C25D9/00; C25D9/04; C25D9/08; C25D9/10; H; H01; H01B; H01B3/00; H01B3/02; H01B3/025; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/147; H01F1/14766; H01F1/14775; H01F1/14783; H01F1/16; H01F1/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
THE METHOD OF PRODUCING ELECTRICALLY INSULATED MAGNETIC SILICON STEELL SHEET MATERIAL WHICH COMPRISES ELECTROLYZING AND AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF WATER SOLUBLE SALTS OF CALCIUM, MAGNESIUM, MANGANESE, AND ALUMINUM, WITH THE SILICON STEEL SHEET MATERIAL BEING ARRANGED AS THE CATHODE IN SAID SOLUTION, FOR FORMING AND DEPOSITING AN ADHERENT COATING OF THE HYDROXIDE OF THE CATION OF SAID COMPOUND ON SAID SILICON STEEL SHEET MATERIAL, REMOVING THE THUS COATED SILICON STEEL SHEET MATERIAL FROM SAID SOLUTION, AND HEATING SAID COATED SHEET MATERIAL AT ELEVATED TEMPERATURE TO REACT SAID HYDROXIDE WITH THE SILICON IN SAID SHEET MATERIAL FOR FORMING A REFRACTROY INSULATING COATING COMPRISING A SILICATE COMPOUND ON THE SURFACE OF SAID SHEET MATERIAL.
Claim 2
Independent Claim
123 words
THE METHOD OF PRODUCING ELECTRICALLY INSULATED MAGNETIC SILICON STEELL SHEET MATERIAL WHICH COMPRISES ELECTROLYZING AND AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF WATER SOLUBLE SALTS OF CALCIUM, MAGNESIUM, MANGANESE, AND ALUMINUM, WITH THE SILICON STEEL SHEET MATERIAL BEING ARRANGED AS THE CATHODE IN SAID SOLUTION, FOR FORMING AND DEPOSITING AN ADHERENT COATING OF THE HYDROXIDE OF THE CATION OF SAID COMPOUND ON SAID SILICON STEEL SHEET MATERIAL, REMOVING THE THUS COATED SILICON STEEL SHEET MATERIAL FROM SAID SOLUTION, AND HEATING SAID COATED SHEET MATERIAL AT ELEVATED TEMPERATURE TO REACT SAID HYDROXIDE WITH THE SILICON IN SAID SHEET MATERIAL FOR FORMING A REFRACTROY INSULATING COATING COMPRISING A SILICATE COMPOUND ON THE SURFACE OF SAID SHEET MATERIAL.
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) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |