US3745046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing bubble domains in magnetic film-substrate structures
Assignee: Boeing North American Inc
•
Filing: 1970-12-28
•
Granted: 1973-07-10
•
Expires: 1990-12-28
Abstract
Abstract A METHOD FOR PRODUCING A BUBBLE DOMAIN IN A MAGNETIC SINGLE CRYSTAL GARNET FILM-SUBSTRATE IS DISCLOSED. THE METHOD INVOLVES THE EPITAXIAL DEPOSITION OF AN IRON GARNET FILM OF THE PROPER CRYSTALLOGRAPHIC ORIENTATION AND HAVING A POSITIVE MAGNETOSTRICTION CONSTANT ON A GARNET SUBSTRATE IN WHICH THE ROOM TEMPERATURE LATTICE CONSTANT OF THE FILM IS LARGER THAN THE ROOM TEMPERATURE LATTICE CONSTANT OF THE SUBSTRATE, PREFERABLY BY AN AMOUNT LESS THAN 0.035 ANGSTROM.
Inventors
- 👤 J Mee
- 👤 D Heinz
- 👤 P Elkins
- 👤 P Besser
- 👤 G Pulliam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:29
CPC Classifications
H; H01; H01F; H01F10/00; H01F10/08; H01F10/10; H01F10/18; H01F10/20; H01F10/24; H01F41/00; H01F41/14; H01F41/20; H01F41/24; H01F41/28
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |