US3505573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low standby power memory cell
Assignee: International Business Machines Corp
•
Filing: 1968-09-30
•
Granted: 1970-04-07
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Expires: 1988-09-30
Abstract
No abstract record available.
Inventors
- 👤 Siegfried K Wiedmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:34
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/35; G; G11; G11C; G11C11/00; G11C11/21; G11C11/34; G11C11/40; G11C11/41; G11C11/411; G11C11/4113; G11C11/4116; H03K3/01; H03K3/012; H03K3/26; H03K3/28; H03K3/281; H03K3/286; H03K3/288; H10; H10B; H10B10/00; H10B10/10; H10D; H10D99/00; Y; Y10; Y10S; Y10S148/00; Y10S148/037; Y10S148/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3218613A
Cited
US3359432A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-06 | 1973-10-06 | 1974-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-06 | 1977-10-06 | 1978-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-06 | 1981-10-06 | 1982-04-07 | $7700.00 | Window Closed / Lapsed |