US3089228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic strip material
Assignee: Post Office
•
Filing: 1958-07-21
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Granted: 1963-05-14
•
Expires: 1978-07-21
Abstract
No abstract record available.
Inventors
- 👤 Lynch Arnold Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:55
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/147; H01F1/14708; H01F1/14716; B; B22; B22F; B22F7/00; B22F7/02; B32; B32B; B32B15/00; B32B15/01; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/928; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075; Y10T29/49078; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/12028; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12944; Y10T428/12986
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A MAGNETIC STRIP MATERIAL FOR FORMING THE CORE OF A MAGNETIC STORAGE DEVICE CONSISTING OF A COMPOSITE STRIP FORMED BY AT LEAST ONE LAYER OF A MAGNETIC ALLOY HAVING A COMPOSITION OF 80% NICKEL, 12% MOLYBDENUM AND 8% IRON BONDED TO A LAYER OF A NON-MAGNETIC ALLOY HAVING A COMPOSED OF 76% NICKEL, 16% MOLYBDENUM AND 8% IRON.
Claim 2
Dependent Claim
58 words
A MAGNETIC STRIP MATERIAL FOR FORMING THE CORE OF A MAGNETIC STORAGE DEVICE CONSISTING OF A COMPOSITE STRIP FORMED BY AT LEAST ONE LAYER OF A MAGNETIC ALLOY HAVING A COMPOSITION OF 80% NICKEL, 12% MOLYBDENUM AND 8% IRON BONDED TO A LAYER OF A NON-MAGNETIC ALLOY HAVING A COMPOSED OF 76% NICKEL, 16% MOLYBDENUM AND 8% IRON.
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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) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |