US3383761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing magnetic memory elements
Assignee: NTT Inc
•
Filing: 1966-10-17
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Granted: 1968-05-21
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Expires: 1986-10-17
Abstract
No abstract record available.
Inventors
- 👤 Hayasaka Toshio
- 👤 Masuzawa Kenro
- 👤 Tokyo Yuzo Odani
- 👤 Senzaki Shigeo
- 👤 Gomi Yuji
- 👤 Ogawa Tadamasa
- 👤 Fujisawa Keizo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 02:14
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/62; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/928; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49069; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12785; Y10T428/12861; Y10T428/12896; Y10T428/12903; Y10T428/12917; Y10T428/12944
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1653378A
Cited
US2145248A
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US2249417A
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US2365208A
Cited
US2545447A
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US2676123A
Cited
US3297418A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |