Patent US3031648A successfully refreshed from Google Patents.
US3031648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic data storage device
Assignee: NCR Voyix Corp
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Filing: 1960-05-25
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Granted: 1962-04-24
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Expires: 1980-05-25
Abstract
No abstract record available.
Inventors
- 👤 Harold E Haber
- 👤 Richard M Clinehens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:51
CPC Classifications
H; H01; H01F; H01F10/00; H01F10/08; H01F10/10; H01F10/12; H01F10/14; H01F41/00; H01F41/14; H01F41/24; H01F41/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A MAGNETIC DATA STORAGE DEVICE COMPRISING: A STIFF RESILIENT WIRE-LIKE SUBSTRATE OF AN ALLOY TAKEN FROM THE GROUP CONSISTING OF PHOSPHOR-BRONZE AND COPPER-BERYLLIUM, SAID SUBSTRATE HAVING AN AVERAGE TRANSVERSE DIMENSION IN THE ORDER OF 5 TO 50 MILS AND OF SUBSTANTIALLY UNIFORM STRUCTURAL CROSS-SECTION THROUGHOUT A MAJOR PORTION OF ITS LENGTH; AND A SATURABLE FEROMAGNETIC COATING DEPOSITED ONTO SAID SUBSTRATE THROUGHOUT A MAJOR PORTION OF THE LENGTH THEREOF AND HAVING A SUBSTANTIALLY UNIFORM THICKNESS IN THE ORDER OF 500 TO 10,000 ANGSTROMS.
Claim 2
Dependent Claim
82 words
A MAGNETIC DATA STORAGE DEVICE COMPRISING: A STIFF RESILIENT WIRE-LIKE SUBSTRATE OF AN ALLOY TAKEN FROM THE GROUP CONSISTING OF PHOSPHOR-BRONZE AND COPPER-BERYLLIUM, SAID SUBSTRATE HAVING AN AVERAGE TRANSVERSE DIMENSION IN THE ORDER OF 5 TO 50 MILS AND OF SUBSTANTIALLY UNIFORM STRUCTURAL CROSS-SECTION THROUGHOUT A MAJOR PORTION OF ITS LENGTH; AND A SATURABLE FEROMAGNETIC COATING DEPOSITED ONTO SAID SUBSTRATE THROUGHOUT A MAJOR PORTION OF THE LENGTH THEREOF AND HAVING A SUBSTANTIALLY UNIFORM THICKNESS IN THE ORDER OF 500 TO 10,000 ANGSTROMS.
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) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |