US3151997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separating-medium coating for preparation of electrical steel strip for annealing
Assignee: United States Steel Corp
•
Filing: 1961-09-29
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Granted: 1964-10-06
•
Expires: 1981-09-29
Abstract
No abstract record available.
Inventors
- 👤 Mahlon A Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:56
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/68; C21D1/70; H; H01; H01B; H01B3/00; H01B3/02; H01B3/025; H01B3/08; H01B3/087; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/147; H01F1/14766; H01F1/14775; H01F1/14783
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A SEPARATING-MEDIUM COATING CONSISTING ESSENTIALLY OF FROM 3.0% TO 10.5% OF FINELY DIVIDED REACTIVE GRADE MGO, FROM .03% TO 1.5% OF AN ALUMINUM BEARING MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM HYDROXIDE, COLLOIDAL BOEHMITE (ALO(OH)) ALUMINA, ALUMINUM ACETATE AND MIXTURES THEREOF, AND THE REMAINDER WATER TO PRODUCE A SLURRY.
Claim 2
Dependent Claim
50 words
A SEPARATING-MEDIUM COATING CONSISTING ESSENTIALLY OF FROM 3.0% TO 10.5% OF FINELY DIVIDED REACTIVE GRADE MGO, FROM .03% TO 1.5% OF AN ALUMINUM BEARING MATERIAL SELECTED FROM THE GROUP CONSISTING OF ALUMINUM HYDROXIDE, COLLOIDAL BOEHMITE (ALO(OH)) ALUMINA, ALUMINUM ACETATE AND MIXTURES THEREOF, AND THE REMAINDER WATER TO PRODUCE A SLURRY.
References Cited (Backward Citations)
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Cited
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US2663658A
Cited
US2828233A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |