US2877448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superconductive logical circuits
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1957-11-08
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Granted: 1959-03-10
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Expires: 1977-11-08
Abstract
No abstract record available.
Inventors
- 👤 James J Nyberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:59
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/44; H; H03; H03K; H03K19/00; H03K19/02; H03K19/195; H03K19/1952; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/831; Y10S505/856; Y10S505/857; Y10S505/858
Claims Analysis
Total Claims: 0
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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) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |