US3525638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetostriction control in magnetic thin films
Assignee: International Business Machines Corp
•
Filing: 1967-09-20
•
Granted: 1970-08-25
•
Expires: 1987-09-20
Abstract
No abstract record available.
Inventors
- 👤 William B Archey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:42
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/14; H01F41/20; C; C23; C23C; C23C14/00; C23C14/22; C23C14/56; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/266
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1973-08-24 | 1974-02-23 | 1974-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-24 | 1978-02-23 | 1978-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-24 | 1982-02-23 | 1982-08-25 | $7700.00 | Window Closed / Lapsed |