US3032486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolytic bath for use in electrodeposition of ferromagnetic compositions
Assignee: NCR Voyix Corp
•
Filing: 1958-11-14
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Granted: 1962-05-01
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Expires: 1978-11-14
Abstract
No abstract record available.
Inventors
- 👤 Jerome S Sallo
- 👤 Robert D Fisher
- 👤 Tsu Ignatius
- 👤 Harsukh J Modi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:01
CPC Classifications
C; C22; C22C; C22C19/00; C25; C25D; C25D3/00; C25D3/02; C25D3/56; C25D3/562; H; H01; H01F; H01F10/00; H01F10/08; H01F10/10; H01F10/12; H01F10/14; H01F41/00; H01F41/14; H01F41/20; H01F41/24; H01F41/26; Y; Y10; Y10S; Y10S205/00; Y10S205/922
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A PROCESS FOR FABRICATING MAGNETIC COMPUTING DEVICES COMPRISING THE STEPS OF; PROVIDING AN AQUEOUS ELECTROLYTIC BATH HAVING A PH IN THE RANGE OF 7.5 TO 9.5 AND INCLUDING AS ESSENTIAL CONSTITUENTS IRON IONS IN A CONCENTRATION IN THE RANGE OF .7 TO 16 GRAMS PER LITER, NICKEL IONS IN A CONCENTRATION IN THE RANGE OF 3 TO 10 GRAMS PER LITER, IN A COMPLEXING AGENT CAPABLE OF FORMING SOLUBLE IRON AND NICKEL COMPLEXES AND BEING OF SUFFICIENT CONCENTRATION TO PREVENT PRECITATION OF SAID IRON AND NICKEL IONS; SUBJECTING AN ELONGATER ELECTRICALLY CONDUCTIVE CARRIER AS A CATHODE TO ELECTROLYTIC ACTION IN SAID BATH FOR A TIME SUFFICIENT TO EFFECT THE DEPOSITION THEREON OF A FERROMAGNETIC COATING WHICH HAS THE PROPERTY OF PROVIDING A PARTICULARLY ORIENTED EASY DIRECTION OF MAYNETIZATION WHEN STRESSED; AND APPLYING A TORSIONAL STRESS TO SAID COATING RELATIVE TO A LONGITUDINAL AXIS OF SAID CARRIER, BY AN AMOUNT SUFFICIENT TO ESTABLISH IN SAID COATING AN EASY DIRECTION OF MAYNETIZATION WHICH IS ORIENTED AT AN ANGLE WITH RESPECT TO SAID LONGITUDINAL AXIS.
Claim 2
Dependent Claim
172 words
A PROCESS FOR FABRICATING MAGNETIC COMPUTING DEVICES COMPRISING THE STEPS OF; PROVIDING AN AQUEOUS ELECTROLYTIC BATH HAVING A PH IN THE RANGE OF 7.5 TO 9.5 AND INCLUDING AS ESSENTIAL CONSTITUENTS IRON IONS IN A CONCENTRATION IN THE RANGE OF .7 TO 16 GRAMS PER LITER, NICKEL IONS IN A CONCENTRATION IN THE RANGE OF 3 TO 10 GRAMS PER LITER, IN A COMPLEXING AGENT CAPABLE OF FORMING SOLUBLE IRON AND NICKEL COMPLEXES AND BEING OF SUFFICIENT CONCENTRATION TO PREVENT PRECITATION OF SAID IRON AND NICKEL IONS; SUBJECTING AN ELONGATER ELECTRICALLY CONDUCTIVE CARRIER AS A CATHODE TO ELECTROLYTIC ACTION IN SAID BATH FOR A TIME SUFFICIENT TO EFFECT THE DEPOSITION THEREON OF A FERROMAGNETIC COATING WHICH HAS THE PROPERTY OF PROVIDING A PARTICULARLY ORIENTED EASY DIRECTION OF MAYNETIZATION WHEN STRESSED; AND APPLYING A TORSIONAL STRESS TO SAID COATING RELATIVE TO A LONGITUDINAL AXIS OF SAID CARRIER, BY AN AMOUNT SUFFICIENT TO ESTABLISH IN SAID COATING AN EASY DIRECTION OF MAYNETIZATION WHICH IS ORIENTED AT AN ANGLE WITH RESPECT TO SAID LONGITUDINAL AXIS.
References Cited (Backward Citations)
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US2507400A
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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) | 1965-04-30 | 1965-10-30 | 1966-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-30 | 1969-10-30 | 1970-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-30 | 1973-10-30 | 1974-05-01 | $7700.00 | Window Closed / Lapsed |