US3063944A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of chemically milling magnesium
Assignee: Novartis Corp
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Filing: 1959-10-26
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Granted: 1962-11-13
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Expires: 1979-10-26
Abstract
No abstract record available.
Inventors
- 👤 Hyman W Zussman
- 👤 Robert M Pines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:54
CPC Classifications
C; C23; C23F; C23F1/00; C23F1/10; C23F1/14; C23F1/16; C23F1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A METHOD OF CHEMICALLY MILLING MAGNESIUM METAL WHICH COMPRISES APPLYING TO THE SURFACE OF THE MAGNESIUM METAL AN AQUEOUS SOLUTION, HAVING A PH OF 4 TO 6, OF FROM ABOUT 0.1 WEIGHT PERCENT TO ABOUT 20 WEIGHT PERCENT OF AN ORGANIC CHELATING AGENT SELECTED FROM THE GROUP CONSISTING OF ETHYLENEDIAMINETETRAACETIC ACID, DIETHYLENE TRIAMINEPENTAACETIC ACID, HYDROXYETHYLETHYLENEDIAMINETRIACETIC ACID, CYCLOHEXANEDIAMINETETRAACETIC ACID, DIAMINO DIETHYLETHERTETRAACETIC ACID,N-(2-HYDROXYCYCLOHEXYL)ETHYLENEDIAMINETRIACETIC ACID AND THEIR ALKALI METAL AND AMINE SALTS.
Claim 2
Independent Claim
69 words
A METHOD OF CHEMICALLY MILLING MAGNESIUM METAL WHICH COMPRISES APPLYING TO THE SURFACE OF THE MAGNESIUM METAL AN AQUEOUS SOLUTION, HAVING A PH OF 4 TO 6, OF FROM ABOUT 0.1 WEIGHT PERCENT TO ABOUT 20 WEIGHT PERCENT OF AN ORGANIC CHELATING AGENT SELECTED FROM THE GROUP CONSISTING OF ETHYLENEDIAMINETETRAACETIC ACID, DIETHYLENE TRIAMINEPENTAACETIC ACID, HYDROXYETHYLETHYLENEDIAMINETRIACETIC ACID, CYCLOHEXANEDIAMINETETRAACETIC ACID, DIAMINO DIETHYLETHERTETRAACETIC ACID,N-(2-HYDROXYCYCLOHEXYL)ETHYLENEDIAMINETRIACETIC ACID AND THEIR ALKALI METAL AND AMINE SALTS.
References Cited (Backward Citations)
US2739047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-12 | 1966-05-14 | 1966-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-12 | 1970-05-14 | 1970-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-12 | 1974-05-14 | 1974-11-13 | $7700.00 | Window Closed / Lapsed |