US3408640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Read-out circuitry for high density dynamic magnetic stores
Assignee: Societe dElectronique et dAutomatisme SA
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Filing: 1965-09-13
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Granted: 1968-10-29
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Expires: 1985-09-13
Abstract
No abstract record available.
Inventors
- 👤 Masson Claude Marie Edmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:00
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/02; G06; G06K; G06K1/00; G11C; G11C7/00; G11C7/06
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) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |