US2945217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic data storage devices
Assignee: NCR Voyix Corp
•
Filing: 1958-11-07
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Granted: 1960-07-12
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Expires: 1978-11-07
Abstract
No abstract record available.
Inventors
- 👤 Robert D Fisher
- 👤 Jerome S Sallo
- 👤 Tsu Ignatius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:19
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: 0
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References Cited (Backward Citations)
US2112084A
Cited
US2706329A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |