US3515606A
Expired / Lapsed
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Methods of improving magnetic characteristics of films for memory application
Assignee: Massachusetts Institute of Technology
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Filing: 1966-03-25
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Granted: 1970-06-02
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Expires: 1986-03-25
Abstract
No abstract record available.
Inventors
- 👤 Thomas S Crowther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:16
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/06; C23C14/14; C23C14/18; B; B82; B82Y; B82Y25/00; B82Y40/00; C23C14/58; C23C14/5806; C23C14/5893; H; H01; H01F; H01F41/00; H01F41/14; H01F41/30; H01F41/302; H01F41/303; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49069
Claims Analysis
Total Claims: 0
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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) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |