US3040301A
Expired / Lapsed
US
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Thin sheet ferrite memory matrix and method
Assignee: Gulton Industries Inc
•
Filing: 1957-03-28
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Granted: 1962-06-19
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Expires: 1977-03-28
Abstract
No abstract record available.
Inventors
- 👤 Glenn N Howatt
- 👤 Abraham I Dranetz
- 👤 Welkowitz Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:32
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/02; G11C11/06; G11C11/06085; H; H01; H01F; H01F17/00; H01F17/0006; H01F17/0033; H01F41/00; H01F41/02; H01F41/04; H01F41/041; H01F41/046; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49069
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2743507A
Cited
US2746130A
Cited
US2700150A
Cited
US2724103A
Cited
US2911627A
Cited
GB845604A
Cited
US2919432A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |