US3400384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Read/write circuit for dynamic information storage unit
Assignee: Telefunken Patentverwertungs GmbH
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Filing: 1967-12-28
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Granted: 1968-09-03
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Expires: 1987-12-28
Abstract
No abstract record available.
Inventors
- 👤 Hildebrandt Volker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:50
CPC Classifications
G; G06; G06F; G06F3/00; G06F3/007; G06F15/00; G06F15/02; G06F3/01; G06F3/02; G06F3/0227; G11; G11C; G11C21/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2783455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |